diff --git a/Telegram/SourceFiles/apiwrap.cpp b/Telegram/SourceFiles/apiwrap.cpp
index e7941cd4a..a9fbcd3a6 100644
--- a/Telegram/SourceFiles/apiwrap.cpp
+++ b/Telegram/SourceFiles/apiwrap.cpp
@@ -2787,7 +2787,7 @@ void ApiWrap::requestAttachedStickerSets(not_null<PhotoData*> photo) {
 			Ui::show(Box<InformBox>(tr::lng_stickers_not_found(tr::now)));
 			return;
 		} else if (result.v.size() > 1) {
-			Ui::show(Box<StickersBox>(result));
+			Ui::show(Box<StickersBox>(&session(), result));
 			return;
 		}
 		// Single attached sticker pack.
diff --git a/Telegram/SourceFiles/boxes/add_contact_box.cpp b/Telegram/SourceFiles/boxes/add_contact_box.cpp
index 4bb30b2a9..49c9fc258 100644
--- a/Telegram/SourceFiles/boxes/add_contact_box.cpp
+++ b/Telegram/SourceFiles/boxes/add_contact_box.cpp
@@ -13,6 +13,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "mtproto/sender.h"
 #include "base/flat_set.h"
 #include "boxes/confirm_box.h"
+#include "boxes/confirm_phone_box.h" // ExtractPhonePrefix.
 #include "boxes/photo_crop_box.h"
 #include "boxes/peer_list_controllers.h"
 #include "boxes/peers/add_participants_box.h"
@@ -209,7 +210,12 @@ AddContactBox::AddContactBox(
 : _session(session)
 , _first(this, st::defaultInputField, tr::lng_signup_firstname(), fname)
 , _last(this, st::defaultInputField, tr::lng_signup_lastname(), lname)
-, _phone(this, st::defaultInputField, tr::lng_contact_phone(), phone)
+, _phone(
+	this,
+	st::defaultInputField,
+	tr::lng_contact_phone(),
+	ExtractPhonePrefix(session->user()->phone()),
+	phone)
 , _invertOrder(langFirstNameGoesSecond()) {
 	if (!phone.isEmpty()) {
 		_phone->setDisabled(true);
diff --git a/Telegram/SourceFiles/boxes/change_phone_box.cpp b/Telegram/SourceFiles/boxes/change_phone_box.cpp
index a422ed832..c796919b1 100644
--- a/Telegram/SourceFiles/boxes/change_phone_box.cpp
+++ b/Telegram/SourceFiles/boxes/change_phone_box.cpp
@@ -17,6 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "boxes/confirm_box.h"
 #include "main/main_session.h"
 #include "data/data_session.h"
+#include "data/data_user.h"
 #include "styles/style_boxes.h"
 
 namespace {
@@ -79,6 +80,7 @@ private:
 	}
 
 	const not_null<Main::Session*> _session;
+
 	object_ptr<Ui::PhoneInput> _phone = { nullptr };
 	object_ptr<Ui::FadeWrap<Ui::FlatLabel>> _error = { nullptr };
 	mtpRequestId _requestId = 0;
@@ -137,7 +139,12 @@ void ChangePhoneBox::EnterPhone::prepare() {
 	setTitle(tr::lng_change_phone_title());
 
 	auto phoneValue = QString();
-	_phone.create(this, st::defaultInputField, tr::lng_change_phone_new_title(), phoneValue);
+	_phone.create(
+		this,
+		st::defaultInputField,
+		tr::lng_change_phone_new_title(),
+		ExtractPhonePrefix(_session->user()->phone()),
+		phoneValue);
 
 	_phone->resize(st::boxWidth - 2 * st::boxPadding.left(), _phone->height());
 	_phone->moveToLeft(st::boxPadding.left(), st::boxLittleSkip);
diff --git a/Telegram/SourceFiles/boxes/confirm_phone_box.cpp b/Telegram/SourceFiles/boxes/confirm_phone_box.cpp
index 60437db1a..f17ab1b68 100644
--- a/Telegram/SourceFiles/boxes/confirm_phone_box.cpp
+++ b/Telegram/SourceFiles/boxes/confirm_phone_box.cpp
@@ -17,6 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/qthelp_url.h" // qthelp::url_encode
 #include "platform/platform_info.h" // Platform::SystemVersionPretty
 #include "mainwidget.h"
+#include "numbers.h"
 #include "lang/lang_keys.h"
 
 namespace {
@@ -64,7 +65,14 @@ void ShowPhoneBannedError(const QString &phone) {
 		tr::lng_signin_banned_help(tr::now),
 		close,
 		[=] { SendToBannedHelp(phone); close(); }));
+}
 
+QString ExtractPhonePrefix(const QString &phone) {
+	const auto pattern = phoneNumberParse(phone);
+	if (!pattern.isEmpty()) {
+		return phone.mid(0, pattern[0]);
+	}
+	return QString();
 }
 
 SentCodeField::SentCodeField(
diff --git a/Telegram/SourceFiles/boxes/confirm_phone_box.h b/Telegram/SourceFiles/boxes/confirm_phone_box.h
index 7350d8d42..17aedd96c 100644
--- a/Telegram/SourceFiles/boxes/confirm_phone_box.h
+++ b/Telegram/SourceFiles/boxes/confirm_phone_box.h
@@ -17,6 +17,7 @@ class FlatLabel;
 } // namespace Ui
 
 void ShowPhoneBannedError(const QString &phone);
+[[nodiscard]] QString ExtractPhonePrefix(const QString &phone);
 
 class SentCodeField : public Ui::InputField {
 public:
diff --git a/Telegram/SourceFiles/boxes/stickers_box.cpp b/Telegram/SourceFiles/boxes/stickers_box.cpp
index 9073698c8..e9c88f1bd 100644
--- a/Telegram/SourceFiles/boxes/stickers_box.cpp
+++ b/Telegram/SourceFiles/boxes/stickers_box.cpp
@@ -43,24 +43,9 @@ constexpr auto kHandleMegagroupSetAddressChangeTimeout = crl::time(1000);
 
 } // namespace
 
-int stickerPacksCount(bool includeArchivedOfficial) {
-	auto result = 0;
-	auto &order = Auth().data().stickerSetsOrder();
-	auto &sets = Auth().data().stickerSets();
-	for (const auto setId : order) {
-		const auto it = sets.constFind(setId);
-		if (it != sets.cend()) {
-			if (!(it->flags & MTPDstickerSet::Flag::f_archived) || ((it->flags & MTPDstickerSet::Flag::f_official) && includeArchivedOfficial)) {
-				++result;
-			}
-		}
-	}
-	return result;
-}
-
 class StickersBox::CounterWidget : public Ui::RpWidget {
 public:
-	CounterWidget(QWidget *parent);
+	CounterWidget(QWidget *parent, rpl::producer<int> count);
 
 protected:
 	void paintEvent(QPaintEvent *e) override;
@@ -73,7 +58,9 @@ private:
 
 };
 
-StickersBox::CounterWidget::CounterWidget(QWidget *parent)
+StickersBox::CounterWidget::CounterWidget(
+	QWidget *parent,
+	rpl::producer<int> count)
 : RpWidget(parent) {
 	setAttribute(Qt::WA_TransparentForMouseEvents);
 
@@ -83,8 +70,9 @@ StickersBox::CounterWidget::CounterWidget(QWidget *parent)
 	_st.padding = st::stickersFeaturedBadgePadding;
 	_st.font = st::stickersFeaturedBadgeFont;
 
-	Auth().data().featuredStickerSetsUnreadCountValue(
-	) | rpl::start_with_next([this](int count) {
+	std::move(
+		count
+	) | rpl::start_with_next([=](int count) {
 		setCounter(count);
 		update();
 	}, lifetime());
@@ -131,26 +119,35 @@ void StickersBox::Tab::saveScrollTop() {
 	_scrollTop = widget()->getVisibleTop();
 }
 
-StickersBox::StickersBox(QWidget*, Section section)
-: _tabs(this, st::stickersTabs)
-, _unreadBadge(this)
+StickersBox::StickersBox(
+	QWidget*,
+	not_null<Main::Session*> session,
+	Section section)
+: _session(session)
+, _tabs(this, st::stickersTabs)
+, _unreadBadge(this, _session->data().featuredStickerSetsUnreadCountValue())
 , _section(section)
-, _installed(0, this, Section::Installed)
-, _featured(1, this, Section::Featured)
-, _archived(2, this, Section::Archived) {
+, _installed(0, this, session, Section::Installed)
+, _featured(1, this, session, Section::Featured)
+, _archived(2, this, session, Section::Archived) {
 	_tabs->setRippleTopRoundRadius(st::boxRadius);
 }
 
 StickersBox::StickersBox(QWidget*, not_null<ChannelData*> megagroup)
-: _section(Section::Installed)
+: _session(&megagroup->session())
+, _section(Section::Installed)
 , _installed(0, this, megagroup)
 , _megagroupSet(megagroup) {
 	subscribe(_installed.widget()->scrollToY, [this](int y) { onScrollToY(y); });
 }
 
-StickersBox::StickersBox(QWidget*, const MTPVector<MTPStickerSetCovered> &attachedSets)
-: _section(Section::Attached)
-, _attached(0, this, Section::Attached)
+StickersBox::StickersBox(
+	QWidget*,
+	not_null<Main::Session*> session,
+	const MTPVector<MTPStickerSetCovered> &attachedSets)
+: _session(session)
+, _section(Section::Attached)
+, _attached(0, this, session, Section::Attached)
 , _attachedSets(attachedSets) {
 }
 
@@ -167,7 +164,7 @@ void StickersBox::showAttachedStickers() {
 			if (_attached.widget()->appendSet(*set)) {
 				addedSet = true;
 				if (set->stickers.isEmpty() || (set->flags & MTPDstickerSet_ClientFlag::f_not_loaded)) {
-					Auth().api().scheduleStickerSetRequest(set->id, set->access);
+					_session->api().scheduleStickerSetRequest(set->id, set->access);
 				}
 			}
 		}
@@ -177,7 +174,7 @@ void StickersBox::showAttachedStickers() {
 	}
 
 	if (_section == Section::Attached && addedSet) {
-		Auth().api().requestStickerSets();
+		_session->api().requestStickerSets();
 	}
 }
 
@@ -189,7 +186,7 @@ void StickersBox::getArchivedDone(uint64 offsetId, const MTPmessages_ArchivedSti
 	}
 
 	auto &stickers = result.c_messages_archivedStickers();
-	auto &archived = Auth().data().archivedStickerSetsOrderRef();
+	auto &archived = _session->data().archivedStickerSetsOrderRef();
 	if (offsetId) {
 		auto index = archived.indexOf(offsetId);
 		if (index >= 0) {
@@ -231,7 +228,7 @@ void StickersBox::getArchivedDone(uint64 offsetId, const MTPmessages_ArchivedSti
 			if (_archived.widget()->appendSet(*set)) {
 				addedSet = true;
 				if (set->stickers.isEmpty() || (set->flags & MTPDstickerSet_ClientFlag::f_not_loaded)) {
-					Auth().api().scheduleStickerSetRequest(set->id, set->access);
+					_session->api().scheduleStickerSetRequest(set->id, set->access);
 				}
 			}
 		}
@@ -249,7 +246,7 @@ void StickersBox::getArchivedDone(uint64 offsetId, const MTPmessages_ArchivedSti
 	refreshTabs();
 	_someArchivedLoaded = true;
 	if (_section == Section::Archived && addedSet) {
-		Auth().api().requestStickerSets();
+		_session->api().requestStickerSets();
 	}
 }
 
@@ -266,7 +263,7 @@ void StickersBox::prepare() {
 		setTitle(tr::lng_stickers_attached_sets());
 	}
 	if (_tabs) {
-		if (Auth().data().archivedStickerSetsOrder().isEmpty()) {
+		if (_session->data().archivedStickerSetsOrder().isEmpty()) {
 			preloadArchivedSets();
 		}
 		setNoContentMargin(true);
@@ -317,11 +314,11 @@ void StickersBox::prepare() {
 	setInnerWidget(_tab->takeWidget(), getTopSkip());
 	setDimensions(st::boxWideWidth, st::boxMaxListHeight);
 
-	Auth().data().stickersUpdated(
+	_session->data().stickersUpdated(
 	) | rpl::start_with_next(
 		[this] { handleStickersUpdated(); },
 		lifetime());
-	Auth().api().updateStickers();
+	_session->api().updateStickers();
 
 	if (_installed.widget()) {
 		connect(_installed.widget(), SIGNAL(draggingScrollDelta(int)), this, SLOT(onDraggingScrollDelta(int)));
@@ -346,11 +343,11 @@ void StickersBox::refreshTabs() {
 	auto sections = QStringList();
 	sections.push_back(tr::lng_stickers_installed_tab(tr::now).toUpper());
 	_tabIndices.push_back(Section::Installed);
-	if (!Auth().data().featuredStickerSetsOrder().isEmpty()) {
+	if (!_session->data().featuredStickerSetsOrder().isEmpty()) {
 		sections.push_back(tr::lng_stickers_featured_tab(tr::now).toUpper());
 		_tabIndices.push_back(Section::Featured);
 	}
-	if (!Auth().data().archivedStickerSetsOrder().isEmpty()) {
+	if (!_session->data().archivedStickerSetsOrder().isEmpty()) {
 		sections.push_back(tr::lng_stickers_archived_tab(tr::now).toUpper());
 		_tabIndices.push_back(Section::Archived);
 	}
@@ -372,10 +369,10 @@ void StickersBox::loadMoreArchived() {
 	}
 
 	uint64 lastId = 0;
-	for (auto setIt = Auth().data().archivedStickerSetsOrder().cend(), e = Auth().data().archivedStickerSetsOrder().cbegin(); setIt != e;) {
+	for (auto setIt = _session->data().archivedStickerSetsOrder().cend(), e = _session->data().archivedStickerSetsOrder().cbegin(); setIt != e;) {
 		--setIt;
-		auto it = Auth().data().stickerSets().constFind(*setIt);
-		if (it != Auth().data().stickerSets().cend()) {
+		auto it = _session->data().stickerSets().constFind(*setIt);
+		if (it != _session->data().stickerSets().cend()) {
 			if (it->flags & MTPDstickerSet::Flag::f_archived) {
 				lastId = it->id;
 				break;
@@ -488,7 +485,7 @@ QPixmap StickersBox::grabContentCache() {
 }
 
 void StickersBox::installSet(uint64 setId) {
-	auto &sets = Auth().data().stickerSetsRef();
+	auto &sets = _session->data().stickerSetsRef();
 	auto it = sets.find(setId);
 	if (it == sets.cend()) {
 		rebuildList();
@@ -525,7 +522,7 @@ void StickersBox::installDone(const MTPmessages_StickerSetInstallResult &result)
 bool StickersBox::installFail(uint64 setId, const RPCError &error) {
 	if (MTP::isDefaultHandledError(error)) return false;
 
-	auto &sets = Auth().data().stickerSetsRef();
+	auto &sets = _session->data().stickerSetsRef();
 	auto it = sets.find(setId);
 	if (it == sets.cend()) {
 		rebuildList();
@@ -549,16 +546,16 @@ void StickersBox::requestArchivedSets() {
 		preloadArchivedSets();
 	}
 
-	auto &sets = Auth().data().stickerSets();
-	for_const (auto setId, Auth().data().archivedStickerSetsOrder()) {
+	auto &sets = _session->data().stickerSets();
+	for_const (auto setId, _session->data().archivedStickerSetsOrder()) {
 		auto it = sets.constFind(setId);
 		if (it != sets.cend()) {
 			if (it->stickers.isEmpty() && (it->flags & MTPDstickerSet_ClientFlag::f_not_loaded)) {
-				Auth().api().scheduleStickerSetRequest(setId, it->access);
+				_session->api().scheduleStickerSetRequest(setId, it->access);
 			}
 		}
 	}
-	Auth().api().requestStickerSets();
+	_session->api().requestStickerSets();
 }
 
 void StickersBox::resizeEvent(QResizeEvent *e) {
@@ -582,7 +579,7 @@ void StickersBox::handleStickersUpdated() {
 	} else {
 		_tab->widget()->updateRows();
 	}
-	if (Auth().data().archivedStickerSetsOrder().isEmpty()) {
+	if (_session->data().archivedStickerSetsOrder().isEmpty()) {
 		preloadArchivedSets();
 	} else {
 		refreshTabs();
@@ -611,9 +608,7 @@ void StickersBox::saveChanges() {
 	if (_someArchivedLoaded) {
 		Local::writeArchivedStickers();
 	}
-	if (Main::Session::Exists()) {
-		Auth().api().saveStickerSets(_installed.widget()->getOrder(), _installed.widget()->getRemovedSets());
-	}
+	_session->api().saveStickerSets(_installed.widget()->getOrder(), _installed.widget()->getRemovedSets());
 }
 
 void StickersBox::setInnerFocus() {
@@ -657,8 +652,12 @@ StickersBox::Inner::Row::Row(
 
 StickersBox::Inner::Row::~Row() = default;
 
-StickersBox::Inner::Inner(QWidget *parent, StickersBox::Section section)
+StickersBox::Inner::Inner(
+	QWidget *parent,
+	not_null<Main::Session*> session,
+	StickersBox::Section section)
 : RpWidget(parent)
+, _session(session)
 , _section(section)
 , _rowHeight(st::contactsPadding.top() + st::contactsPhotoSize + st::contactsPadding.bottom())
 , _shiftingAnimation([=](crl::time now) {
@@ -674,6 +673,7 @@ StickersBox::Inner::Inner(QWidget *parent, StickersBox::Section section)
 
 StickersBox::Inner::Inner(QWidget *parent, not_null<ChannelData*> megagroup)
 : RpWidget(parent)
+, _session(&megagroup->session())
 , _section(StickersBox::Section::Installed)
 , _rowHeight(st::contactsPadding.top() + st::contactsPhotoSize + st::contactsPadding.bottom())
 , _shiftingAnimation([=](crl::time now) {
@@ -707,7 +707,7 @@ StickersBox::Inner::Inner(QWidget *parent, not_null<ChannelData*> megagroup)
 }
 
 void StickersBox::Inner::setup() {
-	subscribe(Auth().downloaderTaskFinished(), [this] {
+	subscribe(_session->downloaderTaskFinished(), [this] {
 		update();
 		readVisibleSets();
 	});
@@ -1284,7 +1284,7 @@ void StickersBox::Inner::mouseReleaseEvent(QMouseEvent *e) {
 			return -1;
 		}();
 		auto getSetByRow = [&](const Row &row) -> const Stickers::Set* {
-			auto &sets = Auth().data().stickerSetsRef();
+			auto &sets = _session->data().stickerSetsRef();
 			if (!row.isRecentSet()) {
 				auto it = sets.find(row.id);
 				if (it != sets.cend()) {
@@ -1327,8 +1327,8 @@ void StickersBox::Inner::saveGroupSet() {
 	auto oldId = (_megagroupSet->mgInfo->stickerSet.type() == mtpc_inputStickerSetID) ? _megagroupSet->mgInfo->stickerSet.c_inputStickerSetID().vid().v : 0;
 	auto newId = (_megagroupSetInput.type() == mtpc_inputStickerSetID) ? _megagroupSetInput.c_inputStickerSetID().vid().v : 0;
 	if (newId != oldId) {
-		Auth().api().setGroupStickerSet(_megagroupSet, _megagroupSetInput);
-		Auth().api().stickerSetInstalled(Stickers::MegagroupSetId);
+		_session->api().setGroupStickerSet(_megagroupSet, _megagroupSetInput);
+		_session->api().stickerSetInstalled(Stickers::MegagroupSetId);
 	}
 }
 
@@ -1460,8 +1460,8 @@ void StickersBox::Inner::handleMegagroupSetAddressChange() {
 	auto text = _megagroupSetField->getLastText().trimmed();
 	if (text.isEmpty()) {
 		if (_megagroupSelectedSet) {
-			auto it = Auth().data().stickerSets().constFind(_megagroupSelectedSet->id);
-			if (it != Auth().data().stickerSets().cend() && !it->shortName.isEmpty()) {
+			auto it = _session->data().stickerSets().constFind(_megagroupSelectedSet->id);
+			if (it != _session->data().stickerSets().cend() && !it->shortName.isEmpty()) {
 				setMegagroupSelectedSet(MTP_inputStickerSetEmpty());
 			}
 		}
@@ -1493,10 +1493,10 @@ void StickersBox::Inner::rebuildMegagroupSet() {
 	}
 	auto &set = _megagroupSetInput.c_inputStickerSetID();
 	auto setId = set.vid().v;
-	auto &sets = Auth().data().stickerSets();
+	auto &sets = _session->data().stickerSets();
 	auto it = sets.find(setId);
 	if (it == sets.cend() || (it->flags & MTPDstickerSet_ClientFlag::f_not_loaded)) {
-		Auth().api().scheduleStickerSetRequest(set.vid().v, set.vaccess_hash().v);
+		_session->api().scheduleStickerSetRequest(set.vid().v, set.vaccess_hash().v);
 		return;
 	}
 
@@ -1555,22 +1555,22 @@ void StickersBox::Inner::rebuild() {
 	clear();
 	auto &order = ([&]() -> const Stickers::Order & {
 		if (_section == Section::Installed) {
-			auto &result = Auth().data().stickerSetsOrder();
+			auto &result = _session->data().stickerSetsOrder();
 			if (_megagroupSet && result.empty()) {
-				return Auth().data().featuredStickerSetsOrder();
+				return _session->data().featuredStickerSetsOrder();
 			}
 			return result;
 		} else if (_section == Section::Featured) {
-			return Auth().data().featuredStickerSetsOrder();
+			return _session->data().featuredStickerSetsOrder();
 		}
-		return Auth().data().archivedStickerSetsOrder();
+		return _session->data().archivedStickerSetsOrder();
 	})();
 	_rows.reserve(order.size() + 1);
 	_shiftingStartTimes.reserve(order.size() + 1);
 
-	auto &sets = Auth().data().stickerSets();
+	auto &sets = _session->data().stickerSets();
 	if (_megagroupSet) {
-		auto usingFeatured = Auth().data().stickerSetsOrder().empty();
+		auto usingFeatured = _session->data().stickerSetsOrder().empty();
 		_megagroupSubTitle->setText(usingFeatured
 			? tr::lng_stickers_group_from_featured(tr::now)
 			: tr::lng_stickers_group_from_your(tr::now));
@@ -1590,10 +1590,10 @@ void StickersBox::Inner::rebuild() {
 		rebuildAppendSet(it.value(), maxNameWidth);
 
 		if (it->stickers.isEmpty() || (it->flags & MTPDstickerSet_ClientFlag::f_not_loaded)) {
-			Auth().api().scheduleStickerSetRequest(it->id, it->access);
+			_session->api().scheduleStickerSetRequest(it->id, it->access);
 		}
 	}
-	Auth().api().requestStickerSets();
+	_session->api().requestStickerSets();
 	updateSize();
 }
 
@@ -1618,7 +1618,7 @@ void StickersBox::Inner::updateSize(int newWidth) {
 
 void StickersBox::Inner::updateRows() {
 	int maxNameWidth = countMaxNameWidth();
-	auto &sets = Auth().data().stickerSets();
+	auto &sets = _session->data().stickerSets();
 	for (const auto &row : _rows) {
 		const auto it = sets.constFind(row->id);
 		if (it == sets.cend()) {
@@ -1758,8 +1758,8 @@ void StickersBox::Inner::fillSetCover(const Stickers::Set &set, ImagePtr *thumbn
 int StickersBox::Inner::fillSetCount(const Stickers::Set &set) const {
 	int result = set.stickers.isEmpty() ? set.count : set.stickers.size(), added = 0;
 	if (set.id == Stickers::CloudRecentSetId) {
-		auto customIt = Auth().data().stickerSets().constFind(Stickers::CustomSetId);
-		if (customIt != Auth().data().stickerSets().cend()) {
+		auto customIt = _session->data().stickerSets().constFind(Stickers::CustomSetId);
+		if (customIt != _session->data().stickerSets().cend()) {
 			added = customIt->stickers.size();
 			for_const (auto &sticker, Stickers::GetRecentPack()) {
 				if (customIt->stickers.indexOf(sticker.first) < 0) {
@@ -1904,7 +1904,7 @@ void StickersBox::Inner::readVisibleSets() {
 		if (!thumbnail
 			|| thumbnail->loaded()
 			|| _rows[i]->sticker->loaded()) {
-			Auth().api().readFeaturedSetDelayed(_rows[i]->id);
+			_session->api().readFeaturedSetDelayed(_rows[i]->id);
 		}
 	}
 }
diff --git a/Telegram/SourceFiles/boxes/stickers_box.h b/Telegram/SourceFiles/boxes/stickers_box.h
index 1c68eb010..6bbb4173a 100644
--- a/Telegram/SourceFiles/boxes/stickers_box.h
+++ b/Telegram/SourceFiles/boxes/stickers_box.h
@@ -28,6 +28,10 @@ class SlideAnimation;
 class CrossButton;
 } // namespace Ui
 
+namespace Main {
+class Session;
+} // namespace Main
+
 class StickersBox : public BoxContent, public RPCSender {
 public:
 	enum class Section {
@@ -36,9 +40,16 @@ public:
 		Archived,
 		Attached,
 	};
-	StickersBox(QWidget*, Section section);
+
+	StickersBox(
+		QWidget*,
+		not_null<Main::Session*> session,
+		Section section);
 	StickersBox(QWidget*, not_null<ChannelData*> megagroup);
-	StickersBox(QWidget*, const MTPVector<MTPStickerSetCovered> &attachedSets);
+	StickersBox(
+		QWidget*,
+		not_null<Main::Session*> session,
+		const MTPVector<MTPStickerSetCovered> &attachedSets);
 
 	void setInnerFocus() override;
 
@@ -102,6 +113,8 @@ private:
 	void getArchivedDone(uint64 offsetId, const MTPmessages_ArchivedStickers &result);
 	void showAttachedStickers();
 
+	const not_null<Main::Session*> _session;
+
 	object_ptr<Ui::SettingsSlider> _tabs = { nullptr };
 	QList<Section> _tabIndices;
 
@@ -133,8 +146,6 @@ private:
 
 };
 
-int stickerPacksCount(bool includeArchivedOfficial = false);
-
 // This class is hold in header because it requires Qt preprocessing.
 class StickersBox::Inner
 	: public Ui::RpWidget
@@ -144,7 +155,11 @@ class StickersBox::Inner
 
 public:
 	using Section = StickersBox::Section;
-	Inner(QWidget *parent, Section section);
+
+	Inner(
+		QWidget *parent,
+		not_null<Main::Session*> session,
+		Section section);
 	Inner(QWidget *parent, not_null<ChannelData*> megagroup);
 
 	base::Observable<int> scrollToY;
@@ -300,6 +315,8 @@ private:
 
 	int countMaxNameWidth() const;
 
+	const not_null<Main::Session*> _session;
+
 	Section _section;
 
 	int32 _rowHeight;
diff --git a/Telegram/SourceFiles/boxes/url_auth_box.cpp b/Telegram/SourceFiles/boxes/url_auth_box.cpp
index f2d47ba6d..2105095dd 100644
--- a/Telegram/SourceFiles/boxes/url_auth_box.cpp
+++ b/Telegram/SourceFiles/boxes/url_auth_box.cpp
@@ -120,17 +120,18 @@ void UrlAuthBox::Request(
 		}
 	};
 	*box = Ui::show(
-		Box<UrlAuthBox>(url, qs(request.vdomain()), bot, callback),
+		Box<UrlAuthBox>(session, url, qs(request.vdomain()), bot, callback),
 		LayerOption::KeepOther);
 }
 
 UrlAuthBox::UrlAuthBox(
 	QWidget*,
+	not_null<Main::Session*> session,
 	const QString &url,
 	const QString &domain,
 	UserData *bot,
 	Fn<void(Result)> callback)
-: _content(setupContent(url, domain, bot, std::move(callback))) {
+: _content(setupContent(session, url, domain, bot, std::move(callback))) {
 }
 
 void UrlAuthBox::prepare() {
@@ -140,6 +141,7 @@ void UrlAuthBox::prepare() {
 }
 
 not_null<Ui::RpWidget*> UrlAuthBox::setupContent(
+		not_null<Main::Session*> session,
 		const QString &url,
 		const QString &domain,
 		UserData *bot,
@@ -174,7 +176,7 @@ not_null<Ui::RpWidget*> UrlAuthBox::setupContent(
 			textcmdStartSemibold() + domain + textcmdStopSemibold(),
 			lt_user,
 			(textcmdStartSemibold()
-				+ App::peerName(Auth().user())
+				+ App::peerName(session->user())
 				+ textcmdStopSemibold())));
 	const auto allow = bot
 		? addCheckbox(tr::lng_url_auth_allow_messages(
diff --git a/Telegram/SourceFiles/boxes/url_auth_box.h b/Telegram/SourceFiles/boxes/url_auth_box.h
index c3869ea60..ddad3204f 100644
--- a/Telegram/SourceFiles/boxes/url_auth_box.h
+++ b/Telegram/SourceFiles/boxes/url_auth_box.h
@@ -12,6 +12,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 class HistoryItem;
 struct HistoryMessageMarkupButton;
 
+namespace Main {
+class Session;
+} // namespace Main
+
 class UrlAuthBox : public BoxContent {
 public:
 	static void Activate(
@@ -38,6 +42,7 @@ private:
 public:
 	UrlAuthBox(
 		QWidget*,
+		not_null<Main::Session*> session,
 		const QString &url,
 		const QString &domain,
 		UserData *bot,
@@ -45,6 +50,7 @@ public:
 
 private:
 	not_null<Ui::RpWidget*> setupContent(
+		not_null<Main::Session*> session,
 		const QString &url,
 		const QString &domain,
 		UserData *bot,
diff --git a/Telegram/SourceFiles/boxes/username_box.cpp b/Telegram/SourceFiles/boxes/username_box.cpp
index d9e08ba8c..bce680e13 100644
--- a/Telegram/SourceFiles/boxes/username_box.cpp
+++ b/Telegram/SourceFiles/boxes/username_box.cpp
@@ -25,12 +25,13 @@ constexpr auto kMinUsernameLength = 5;
 
 } // namespace
 
-UsernameBox::UsernameBox(QWidget*)
-: _username(
+UsernameBox::UsernameBox(QWidget*, not_null<Main::Session*> session)
+: _session(session)
+, _username(
 	this,
 	st::defaultInputField,
 	rpl::single(qsl("@username")),
-	Auth().user()->username,
+	session->user()->username,
 	false)
 , _link(this, QString(), st::boxLinkButton)
 , _about(st::boxWidth - st::usernamePadding.left())
@@ -38,7 +39,7 @@ UsernameBox::UsernameBox(QWidget*)
 }
 
 void UsernameBox::prepare() {
-	_goodText = Auth().user()->username.isEmpty()
+	_goodText = _session->user()->username.isEmpty()
 		? QString()
 		: tr::lng_username_available(tr::now);
 
@@ -171,7 +172,7 @@ void UsernameBox::linkClick() {
 }
 
 void UsernameBox::onUpdateDone(const MTPUser &user) {
-	Auth().data().processUser(user);
+	_session->data().processUser(user);
 	closeBox();
 }
 
@@ -179,7 +180,7 @@ bool UsernameBox::onUpdateFail(const RPCError &error) {
 	if (MTP::isDefaultHandledError(error)) return false;
 
 	_saveRequestId = 0;
-	const auto self = Auth().user();
+	const auto self = _session->user();
 	const auto &err = error.type();
 	if (err == qstr("USERNAME_NOT_MODIFIED") || _sentUsername == self->username) {
 		self->setName(
@@ -209,7 +210,7 @@ bool UsernameBox::onUpdateFail(const RPCError &error) {
 void UsernameBox::onCheckDone(const MTPBool &result) {
 	_checkRequestId = 0;
 	const auto newError = (mtpIsTrue(result)
-		|| _checkUsername == Auth().user()->username)
+		|| _checkUsername == _session->user()->username)
 		? QString()
 		: tr::lng_username_occupied(tr::now);
 	const auto newGood = newError.isEmpty()
@@ -231,7 +232,7 @@ bool UsernameBox::onCheckFail(const RPCError &error) {
 		_errorText = tr::lng_username_invalid(tr::now);
 		update();
 		return true;
-	} else if (err == qstr("USERNAME_OCCUPIED") && _checkUsername != Auth().user()->username) {
+	} else if (err == qstr("USERNAME_OCCUPIED") && _checkUsername != _session->user()->username) {
 		_errorText = tr::lng_username_occupied(tr::now);
 		update();
 		return true;
diff --git a/Telegram/SourceFiles/boxes/username_box.h b/Telegram/SourceFiles/boxes/username_box.h
index f76ce0ddb..c1b1e8b65 100644
--- a/Telegram/SourceFiles/boxes/username_box.h
+++ b/Telegram/SourceFiles/boxes/username_box.h
@@ -14,9 +14,13 @@ class UsernameInput;
 class LinkButton;
 } // namespace Ui
 
+namespace Main {
+class Session;
+} // namespace Main
+
 class UsernameBox : public BoxContent, public RPCSender {
 public:
-	UsernameBox(QWidget*);
+	UsernameBox(QWidget*, not_null<Main::Session*> session);
 
 protected:
 	void prepare() override;
@@ -42,6 +46,8 @@ private:
 	QString getName() const;
 	void updateLinkText();
 
+	const not_null<Main::Session*> _session;
+
 	object_ptr<Ui::UsernameInput> _username;
 	object_ptr<Ui::LinkButton> _link;
 
diff --git a/Telegram/SourceFiles/calls/calls_box_controller.cpp b/Telegram/SourceFiles/calls/calls_box_controller.cpp
index 888e10493..2f1223be8 100644
--- a/Telegram/SourceFiles/calls/calls_box_controller.cpp
+++ b/Telegram/SourceFiles/calls/calls_box_controller.cpp
@@ -20,6 +20,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "main/main_session.h"
 #include "data/data_session.h"
 #include "data/data_media_types.h"
+#include "data/data_user.h"
 
 namespace Calls {
 namespace {
@@ -234,7 +235,8 @@ void BoxController::prepare() {
 			delegate()->peerListRefreshRows();
 		}
 	}, lifetime());
-	subscribe(Current().newServiceMessage(), [=](FullMsgId msgId) {
+
+	subscribe(session().calls().newServiceMessage(), [=](FullMsgId msgId) {
 		if (const auto item = session().data().message(msgId)) {
 			insertRow(item, InsertWay::Prepend);
 		}
@@ -308,7 +310,7 @@ void BoxController::rowActionClicked(not_null<PeerListRow*> row) {
 	auto user = row->peer()->asUser();
 	Assert(user != nullptr);
 
-	Current().startOutgoingCall(user);
+	user->session().calls().startOutgoingCall(user);
 }
 
 void BoxController::receivedCalls(const QVector<MTPMessage> &result) {
diff --git a/Telegram/SourceFiles/calls/calls_call.cpp b/Telegram/SourceFiles/calls/calls_call.cpp
index e7405d545..d18170681 100644
--- a/Telegram/SourceFiles/calls/calls_call.cpp
+++ b/Telegram/SourceFiles/calls/calls_call.cpp
@@ -204,7 +204,7 @@ void Call::startOutgoing() {
 		setState(State::Waiting);
 
 		auto &call = result.c_phone_phoneCall();
-		Auth().data().processUsers(call.vusers());
+		_user->session().data().processUsers(call.vusers());
 		if (call.vphone_call().type() != mtpc_phoneCallWaiting) {
 			LOG(("Call Error: Expected phoneCallWaiting in response to phone.requestCall()"));
 			finish(FinishType::Failed);
@@ -277,7 +277,7 @@ void Call::actuallyAnswer() {
 	)).done([=](const MTPphone_PhoneCall &result) {
 		Expects(result.type() == mtpc_phone_phoneCall);
 		auto &call = result.c_phone_phoneCall();
-		Auth().data().processUsers(call.vusers());
+		_user->session().data().processUsers(call.vusers());
 		if (call.vphone_call().type() != mtpc_phoneCallWaiting) {
 			LOG(("Call Error: "
 				"Not phoneCallWaiting in response to phone.acceptCall."));
@@ -334,7 +334,7 @@ QString Call::getDebugLog() const {
 
 void Call::startWaitingTrack() {
 	_waitingTrack = Media::Audio::Current().createTrack();
-	auto trackFileName = Auth().settings().getSoundPath(
+	auto trackFileName = _user->session().settings().getSoundPath(
 		(_type == Type::Outgoing)
 		? qsl("call_outgoing")
 		: qsl("call_incoming"));
@@ -374,10 +374,10 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
 			|| peerToUser(_user->id) != data.vadmin_id().v) {
 			Unexpected("phoneCallRequested call inside an existing call handleUpdate()");
 		}
-		if (Auth().userId() != data.vparticipant_id().v) {
+		if (_user->session().userId() != data.vparticipant_id().v) {
 			LOG(("Call Error: Wrong call participant_id %1, expected %2."
 				).arg(data.vparticipant_id().v
-				).arg(Auth().userId()));
+				).arg(_user->session().userId()));
 			finish(FinishType::Failed);
 			return true;
 		}
@@ -446,7 +446,7 @@ bool Call::handleUpdate(const MTPPhoneCall &call) {
 			}
 		}
 		if (data.is_need_rating() && _id && _accessHash) {
-			Ui::show(Box<RateCallBox>(&Auth(), _id, _accessHash));
+			Ui::show(Box<RateCallBox>(&_user->session(), _id, _accessHash));
 		}
 		const auto reason = data.vreason();
 		if (reason && reason->type() == mtpc_phoneCallDiscardReasonDisconnect) {
@@ -516,7 +516,7 @@ void Call::confirmAcceptedCall(const MTPDphoneCallAccepted &call) {
 		Expects(result.type() == mtpc_phone_phoneCall);
 
 		auto &call = result.c_phone_phoneCall();
-		Auth().data().processUsers(call.vusers());
+		_user->session().data().processUsers(call.vusers());
 		if (call.vphone_call().type() != mtpc_phoneCall) {
 			LOG(("Call Error: Expected phoneCall in response to phone.confirmCall()"));
 			finish(FinishType::Failed);
@@ -702,8 +702,8 @@ bool Call::checkCallCommonFields(const T &call) {
 		LOG(("Call Error: Wrong call access_hash."));
 		return checkFailed();
 	}
-	auto adminId = (_type == Type::Outgoing) ? Auth().userId() : peerToUser(_user->id);
-	auto participantId = (_type == Type::Outgoing) ? peerToUser(_user->id) : Auth().userId();
+	auto adminId = (_type == Type::Outgoing) ? _user->session().userId() : peerToUser(_user->id);
+	auto participantId = (_type == Type::Outgoing) ? peerToUser(_user->id) : _user->session().userId();
 	if (call.vadmin_id().v != adminId) {
 		LOG(("Call Error: Wrong call admin_id %1, expected %2.").arg(call.vadmin_id().v).arg(adminId));
 		return checkFailed();
@@ -848,10 +848,10 @@ void Call::finish(FinishType type, const MTPPhoneCallDiscardReason &reason) {
 		reason,
 		MTP_long(connectionId)
 	)).done([=](const MTPUpdates &result) {
-		// This could be destroyed by updates, so we set Ended after
+		// Here 'this' could be destroyed by updates, so we set Ended after
 		// updates being handled, but in a guarded way.
 		crl::on_main(this, [=] { setState(finalState); });
-		Auth().api().applyUpdates(result);
+		_user->session().api().applyUpdates(result);
 	}).fail([this, finalState](const RPCError &error) {
 		setState(finalState);
 	}).send();
diff --git a/Telegram/SourceFiles/calls/calls_instance.cpp b/Telegram/SourceFiles/calls/calls_instance.cpp
index fb7ac701f..afb4d81b4 100644
--- a/Telegram/SourceFiles/calls/calls_instance.cpp
+++ b/Telegram/SourceFiles/calls/calls_instance.cpp
@@ -30,7 +30,8 @@ constexpr auto kServerConfigUpdateTimeoutMs = 24 * 3600 * crl::time(1000);
 
 } // namespace
 
-Instance::Instance() = default;
+Instance::Instance(not_null<Main::Session*> session) : _session(session) {
+}
 
 void Instance::startOutgoingCall(not_null<UserData*> user) {
 	if (alreadyInCall()) { // Already in a call.
@@ -39,7 +40,7 @@ void Instance::startOutgoingCall(not_null<UserData*> user) {
 	}
 	if (user->callsStatus() == UserData::CallsStatus::Private) {
 		// Request full user once more to refresh the setting in case it was changed.
-		Auth().api().requestFullPeer(user);
+		_session->api().requestFullPeer(user);
 		Ui::show(Box<InformBox>(tr::lng_call_error_not_available(tr::now, lt_user, App::peerName(user))));
 		return;
 	}
@@ -68,7 +69,7 @@ void Instance::playSound(Sound sound) {
 		if (!_callBusyTrack) {
 			_callBusyTrack = Media::Audio::Current().createTrack();
 			_callBusyTrack->fillFromFile(
-				Auth().settings().getSoundPath(qsl("call_busy")));
+				_session->settings().getSoundPath(qsl("call_busy")));
 		}
 		_callBusyTrack->playOnce();
 	} break;
@@ -77,7 +78,7 @@ void Instance::playSound(Sound sound) {
 		if (!_callEndedTrack) {
 			_callEndedTrack = Media::Audio::Current().createTrack();
 			_callEndedTrack->fillFromFile(
-				Auth().settings().getSoundPath(qsl("call_end")));
+				_session->settings().getSoundPath(qsl("call_end")));
 		}
 		_callEndedTrack->playOnce();
 	} break;
@@ -86,7 +87,7 @@ void Instance::playSound(Sound sound) {
 		if (!_callConnectingTrack) {
 			_callConnectingTrack = Media::Audio::Current().createTrack();
 			_callConnectingTrack->fillFromFile(
-				Auth().settings().getSoundPath(qsl("call_connect")));
+				_session->settings().getSoundPath(qsl("call_connect")));
 		}
 		_callConnectingTrack->playOnce();
 	} break;
@@ -236,7 +237,7 @@ bool Instance::isQuitPrevent() {
 void Instance::handleCallUpdate(const MTPPhoneCall &call) {
 	if (call.type() == mtpc_phoneCallRequested) {
 		auto &phoneCall = call.c_phoneCallRequested();
-		auto user = Auth().data().userLoaded(phoneCall.vadmin_id().v);
+		auto user = _session->data().userLoaded(phoneCall.vadmin_id().v);
 		if (!user) {
 			LOG(("API Error: User not loaded for phoneCallRequested."));
 		} else if (user->isSelf()) {
@@ -303,8 +304,4 @@ Instance::~Instance() {
 	}
 }
 
-Instance &Current() {
-	return Auth().calls();
-}
-
 } // namespace Calls
diff --git a/Telegram/SourceFiles/calls/calls_instance.h b/Telegram/SourceFiles/calls/calls_instance.h
index c457d7f1f..f5d30fa9b 100644
--- a/Telegram/SourceFiles/calls/calls_instance.h
+++ b/Telegram/SourceFiles/calls/calls_instance.h
@@ -16,13 +16,21 @@ class Track;
 } // namespace Audio
 } // namespace Media
 
+namespace Main {
+class Session;
+} // namespace Main
+
 namespace Calls {
 
 class Panel;
 
-class Instance : private MTP::Sender, private Call::Delegate, private base::Subscriber, public base::has_weak_ptr {
+class Instance
+	: private MTP::Sender
+	, private Call::Delegate
+	, private base::Subscriber
+	, public base::has_weak_ptr {
 public:
-	Instance();
+	explicit Instance(not_null<Main::Session*> session);
 
 	void startOutgoingCall(not_null<UserData*> user);
 	void handleUpdate(const MTPDupdatePhoneCall &update);
@@ -65,6 +73,8 @@ private:
 	bool alreadyInCall();
 	void handleCallUpdate(const MTPPhoneCall &call);
 
+	const not_null<Main::Session*> _session;
+
 	DhConfig _dhConfig;
 
 	crl::time _lastServerConfigUpdateTime = 0;
@@ -82,6 +92,4 @@ private:
 
 };
 
-Instance &Current();
-
 } // namespace Calls
diff --git a/Telegram/SourceFiles/calls/calls_panel.cpp b/Telegram/SourceFiles/calls/calls_panel.cpp
index 7284cd208..bc31cc8c1 100644
--- a/Telegram/SourceFiles/calls/calls_panel.cpp
+++ b/Telegram/SourceFiles/calls/calls_panel.cpp
@@ -430,7 +430,8 @@ void Panel::initLayout() {
 	) | rpl::start_with_next(
 		[this] { processUserPhoto(); },
 		lifetime());
-	subscribe(Auth().downloaderTaskFinished(), [this] {
+
+	subscribe(_user->session().downloaderTaskFinished(), [=] {
 		refreshUserPhoto();
 	});
 	createDefaultCacheImage();
diff --git a/Telegram/SourceFiles/calls/calls_top_bar.cpp b/Telegram/SourceFiles/calls/calls_top_bar.cpp
index 83dffb8c5..4d7a02081 100644
--- a/Telegram/SourceFiles/calls/calls_top_bar.cpp
+++ b/Telegram/SourceFiles/calls/calls_top_bar.cpp
@@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "calls/calls_instance.h"
 #include "calls/calls_panel.h"
 #include "data/data_user.h"
+#include "main/main_session.h"
 #include "observer_peer.h"
 #include "boxes/abstract_box.h"
 #include "base/timer.h"
@@ -89,13 +90,13 @@ TopBar::TopBar(
 }
 
 void TopBar::initControls() {
-	_mute->setClickedCallback([this] {
-		if (auto call = _call.get()) {
+	_mute->setClickedCallback([=] {
+		if (const auto call = _call.get()) {
 			call->setMute(!call->isMute());
 		}
 	});
 	setMuted(_call->isMute());
-	subscribe(_call->muteChanged(), [this](bool mute) {
+	subscribe(_call->muteChanged(), [=](bool mute) {
 		setMuted(mute);
 		update();
 	});
@@ -107,13 +108,13 @@ void TopBar::initControls() {
 		}
 	}));
 	setInfoLabels();
-	_info->setClickedCallback([this] {
-		if (auto call = _call.get()) {
+	_info->setClickedCallback([=] {
+		if (const auto call = _call.get()) {
 			if (Logs::DebugEnabled()
 				&& (_info->clickModifiers() & Qt::ControlModifier)) {
 				Ui::show(Box<DebugInfoBox>(_call));
 			} else {
-				Current().showInfoPanel(call);
+				call->user()->session().calls().showInfoPanel(call);
 			}
 		}
 	});
diff --git a/Telegram/SourceFiles/calls/calls_top_bar.h b/Telegram/SourceFiles/calls/calls_top_bar.h
index b2d9ce262..e98a5363c 100644
--- a/Telegram/SourceFiles/calls/calls_top_bar.h
+++ b/Telegram/SourceFiles/calls/calls_top_bar.h
@@ -18,6 +18,10 @@ class LabelSimple;
 class FlatLabel;
 } // namespace Ui
 
+namespace Main {
+class Session;
+} // namespace Main
+
 namespace Calls {
 
 class Call;
@@ -42,7 +46,7 @@ private:
 	void startDurationUpdateTimer(crl::time currentDuration);
 	void setMuted(bool mute);
 
-	base::weak_ptr<Call> _call;
+	const base::weak_ptr<Call> _call;
 
 	bool _muted = false;
 	object_ptr<Ui::LabelSimple> _durationLabel;
diff --git a/Telegram/SourceFiles/chat_helpers/stickers.cpp b/Telegram/SourceFiles/chat_helpers/stickers.cpp
index 820e1d373..5690e2e7a 100644
--- a/Telegram/SourceFiles/chat_helpers/stickers.cpp
+++ b/Telegram/SourceFiles/chat_helpers/stickers.cpp
@@ -80,7 +80,7 @@ void ApplyArchivedResult(const MTPDmessages_stickerSetInstallResultArchive &d) {
 	toast.multiline = true;
 	toast.padding = st::stickersToastPadding;
 	Ui::Toast::Show(toast);
-//	Ui::show(Box<StickersBox>(archived), LayerOption::KeepOther);
+//	Ui::show(Box<StickersBox>(archived, &Auth()), LayerOption::KeepOther);
 
 	Auth().data().notifyStickersUpdated();
 }
diff --git a/Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp b/Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp
index 1b8104732..54615465a 100644
--- a/Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp
+++ b/Telegram/SourceFiles/chat_helpers/stickers_list_widget.cpp
@@ -144,7 +144,7 @@ private:
 	void resizeSearchControls();
 	void scrollByWheelEvent(not_null<QWheelEvent*> e);
 
-	not_null<StickersListWidget*> _pan;
+	const not_null<StickersListWidget*> _pan;
 
 	static constexpr auto kVisibleIconsCount = 8;
 
@@ -501,9 +501,11 @@ void StickersListWidget::Footer::mousePressEvent(QMouseEvent *e) {
 	updateSelected();
 
 	if (_iconOver == SpecialOver::Settings) {
-		Ui::show(Box<StickersBox>(hasOnlyFeaturedSets()
-			? StickersBox::Section::Featured
-			: StickersBox::Section::Installed));
+		Ui::show(Box<StickersBox>(
+			&_pan->controller()->session(),
+			(hasOnlyFeaturedSets()
+				? StickersBox::Section::Featured
+				: StickersBox::Section::Installed)));
 	} else if (_iconOver == SpecialOver::Search) {
 		toggleSearch(true);
 	} else {
@@ -833,8 +835,10 @@ StickersListWidget::StickersListWidget(
 	setMouseTracking(true);
 	setAttribute(Qt::WA_OpaquePaintEvent);
 
-	_settings->addClickHandler([] {
-		Ui::show(Box<StickersBox>(StickersBox::Section::Installed));
+	_settings->addClickHandler([=] {
+		Ui::show(Box<StickersBox>(
+			&controller->session(),
+			StickersBox::Section::Installed));
 	});
 
 	subscribe(session().downloaderTaskFinished(), [=] {
diff --git a/Telegram/SourceFiles/history/history.cpp b/Telegram/SourceFiles/history/history.cpp
index 67388f727..cebc5d077 100644
--- a/Telegram/SourceFiles/history/history.cpp
+++ b/Telegram/SourceFiles/history/history.cpp
@@ -1177,7 +1177,8 @@ void History::applyServiceChanges(
 	} break;
 
 	case mtpc_messageActionPhoneCall: {
-		Calls::Current().newServiceMessage().notify(item->fullId());
+		item->history()->session().calls().newServiceMessage().notify(
+			item->fullId());
 	} break;
 	}
 }
diff --git a/Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp b/Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp
index a972b69ff..8f3d4e12f 100644
--- a/Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp
+++ b/Telegram/SourceFiles/history/view/history_view_top_bar_widget.cpp
@@ -184,7 +184,7 @@ void TopBarWidget::onSearch() {
 void TopBarWidget::onCall() {
 	if (const auto peer = _activeChat.peer()) {
 		if (const auto user = peer->asUser()) {
-			Calls::Current().startOutgoingCall(user);
+			user->session().calls().startOutgoingCall(user);
 		}
 	}
 }
diff --git a/Telegram/SourceFiles/history/view/media/history_view_call.cpp b/Telegram/SourceFiles/history/view/media/history_view_call.cpp
index 5578d6fa8..1d534f7e9 100644
--- a/Telegram/SourceFiles/history/view/media/history_view_call.cpp
+++ b/Telegram/SourceFiles/history/view/media/history_view_call.cpp
@@ -15,6 +15,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "history/view/history_view_cursor_state.h"
 #include "calls/calls_instance.h"
 #include "data/data_media_types.h"
+#include "data/data_user.h"
+#include "main/main_session.h"
 #include "styles/style_history.h"
 
 namespace HistoryView {
@@ -48,7 +50,7 @@ QSize Call::countOptimalSize() {
 	const auto user = _parent->data()->history()->peer->asUser();
 	_link = std::make_shared<LambdaClickHandler>([=] {
 		if (user) {
-			Calls::Current().startOutgoingCall(user);
+			user->session().calls().startOutgoingCall(user);
 		}
 	});
 
diff --git a/Telegram/SourceFiles/info/info_wrap_widget.cpp b/Telegram/SourceFiles/info/info_wrap_widget.cpp
index f6f879f0d..23b5bb344 100644
--- a/Telegram/SourceFiles/info/info_wrap_widget.cpp
+++ b/Telegram/SourceFiles/info/info_wrap_widget.cpp
@@ -495,7 +495,7 @@ void WrapWidget::addProfileCallsButton() {
 					? st::infoLayerTopBarCall
 					: st::infoTopBarCall))
 		)->addClickHandler([=] {
-			Calls::Current().startOutgoingCall(user);
+			user->session().calls().startOutgoingCall(user);
 		});
 	}, _topBar->lifetime());
 
diff --git a/Telegram/SourceFiles/main/main_session.cpp b/Telegram/SourceFiles/main/main_session.cpp
index 3f76336e2..3ea70b537 100644
--- a/Telegram/SourceFiles/main/main_session.cpp
+++ b/Telegram/SourceFiles/main/main_session.cpp
@@ -512,7 +512,7 @@ Session::Session(
 , _autoLockTimer([=] { checkAutoLock(); })
 , _api(std::make_unique<ApiWrap>(this))
 , _appConfig(std::make_unique<AppConfig>(this))
-, _calls(std::make_unique<Calls::Instance>())
+, _calls(std::make_unique<Calls::Instance>(this))
 , _downloader(std::make_unique<Storage::Downloader>(_api.get()))
 , _uploader(std::make_unique<Storage::Uploader>(_api.get()))
 , _storage(std::make_unique<Storage::Facade>())
diff --git a/Telegram/SourceFiles/mainwidget.cpp b/Telegram/SourceFiles/mainwidget.cpp
index ba6d30f04..f21c526e8 100644
--- a/Telegram/SourceFiles/mainwidget.cpp
+++ b/Telegram/SourceFiles/mainwidget.cpp
@@ -4295,7 +4295,7 @@ void MainWidget::feedUpdate(const MTPUpdate &update) {
 	} break;
 
 	case mtpc_updatePhoneCall: {
-		Calls::Current().handleUpdate(update.c_updatePhoneCall());
+		session().calls().handleUpdate(update.c_updatePhoneCall());
 	} break;
 
 	case mtpc_updateUserBlocked: {
diff --git a/Telegram/SourceFiles/media/player/media_player_float.cpp b/Telegram/SourceFiles/media/player/media_player_float.cpp
index 1d215df56..6faef5efc 100644
--- a/Telegram/SourceFiles/media/player/media_player_float.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_float.cpp
@@ -51,13 +51,14 @@ Float::Float(
 
 	prepareShadow();
 
-	Auth().data().itemRepaintRequest(
+	_controller->session().data().itemRepaintRequest(
 	) | rpl::start_with_next([this](auto item) {
 		if (_item == item) {
 			repaintItem();
 		}
 	}, lifetime());
-	Auth().data().itemRemoved(
+
+	_controller->session().data().itemRemoved(
 	) | rpl::start_with_next([this](auto item) {
 		if (_item == item) {
 			detach();
@@ -360,7 +361,7 @@ void FloatController::checkCurrent() {
 	if (last) {
 		last->widget->detach();
 	}
-	if (const auto item = Auth().data().message(fullId)) {
+	if (const auto item = _controller->session().data().message(fullId)) {
 		if (const auto media = item->media()) {
 			if (const auto document = media->document()) {
 				if (document->isVideoMessage()) {
@@ -383,8 +384,8 @@ void FloatController::create(not_null<HistoryItem*> item) {
 		[=](not_null<Item*> instance, bool closed) {
 			finishDrag(instance, closed);
 		}));
-	current()->column = Auth().settings().floatPlayerColumn();
-	current()->corner = Auth().settings().floatPlayerCorner();
+	current()->column = _controller->session().settings().floatPlayerColumn();
+	current()->corner = _controller->session().settings().floatPlayerCorner();
 	checkVisibility();
 }
 
@@ -557,8 +558,8 @@ void FloatController::updateColumnCorner(QPoint center) {
 
 	auto size = _items.back()->widget->size();
 	auto min = INT_MAX;
-	auto column = Auth().settings().floatPlayerColumn();
-	auto corner = Auth().settings().floatPlayerCorner();
+	auto column = _controller->session().settings().floatPlayerColumn();
+	auto corner = _controller->session().settings().floatPlayerCorner();
 	auto checkSection = [&](
 			not_null<Window::AbstractSectionWidget*> widget,
 			Window::Column widgetColumn) {
@@ -583,13 +584,13 @@ void FloatController::updateColumnCorner(QPoint center) {
 
 	_delegate->floatPlayerEnumerateSections(checkSection);
 
-	if (Auth().settings().floatPlayerColumn() != column) {
-		Auth().settings().setFloatPlayerColumn(column);
-		Auth().saveSettingsDelayed();
+	if (_controller->session().settings().floatPlayerColumn() != column) {
+		_controller->session().settings().setFloatPlayerColumn(column);
+		_controller->session().saveSettingsDelayed();
 	}
-	if (Auth().settings().floatPlayerCorner() != corner) {
-		Auth().settings().setFloatPlayerCorner(corner);
-		Auth().saveSettingsDelayed();
+	if (_controller->session().settings().floatPlayerCorner() != corner) {
+		_controller->session().settings().setFloatPlayerCorner(corner);
+		_controller->session().saveSettingsDelayed();
 	}
 }
 
@@ -601,8 +602,8 @@ void FloatController::finishDrag(not_null<Item*> instance, bool closed) {
 		instance->animationSide = getSide(center);
 	}
 	updateColumnCorner(center);
-	instance->column = Auth().settings().floatPlayerColumn();
-	instance->corner = Auth().settings().floatPlayerCorner();
+	instance->column = _controller->session().settings().floatPlayerColumn();
+	instance->corner = _controller->session().settings().floatPlayerCorner();
 
 	instance->draggedAnimation.stop();
 	instance->draggedAnimation.start(
diff --git a/Telegram/SourceFiles/media/player/media_player_panel.cpp b/Telegram/SourceFiles/media/player/media_player_panel.cpp
index 9f00beb53..b12a078f6 100644
--- a/Telegram/SourceFiles/media/player/media_player_panel.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_panel.cpp
@@ -227,7 +227,9 @@ void Panel::refreshList() {
 	const auto current = instance()->current(AudioMsgId::Type::Song);
 	const auto contextId = current.contextId();
 	const auto peer = [&]() -> PeerData* {
-		const auto item = contextId ? Auth().data().message(contextId) : nullptr;
+		const auto item = contextId
+			? session().data().message(contextId)
+			: nullptr;
 		const auto media = item ? item->media() : nullptr;
 		const auto document = media ? media->document() : nullptr;
 		if (!document || !document->isSharedMediaMusic()) {
diff --git a/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp b/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp
index cd5472c7b..b86977f86 100644
--- a/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_volume_controller.cpp
@@ -23,10 +23,10 @@ VolumeController::VolumeController(QWidget *parent)
 : TWidget(parent)
 , _slider(this, st::mediaPlayerPanelPlayback) {
 	_slider->setMoveByWheel(true);
-	_slider->setChangeProgressCallback([this](float64 volume) {
+	_slider->setChangeProgressCallback([=](float64 volume) {
 		applyVolumeChange(volume);
 	});
-	_slider->setChangeFinishedCallback([this](float64 volume) {
+	_slider->setChangeFinishedCallback([=](float64 volume) {
 		if (volume > 0) {
 			Global::SetRememberedSongVolume(volume);
 		}
diff --git a/Telegram/SourceFiles/overview/overview_layout.cpp b/Telegram/SourceFiles/overview/overview_layout.cpp
index 211802970..d865a6e44 100644
--- a/Telegram/SourceFiles/overview/overview_layout.cpp
+++ b/Telegram/SourceFiles/overview/overview_layout.cpp
@@ -24,6 +24,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "media/audio/media_audio.h"
 #include "media/player/media_player_instance.h"
 #include "storage/localstorage.h"
+#include "history/history.h"
 #include "history/history_item.h"
 #include "history/history_item_components.h"
 #include "history/view/history_view_cursor_state.h"
@@ -138,7 +139,7 @@ QDateTime ItemBase::dateTime() const {
 void ItemBase::clickHandlerActiveChanged(
 		const ClickHandlerPtr &action,
 		bool active) {
-	Auth().data().requestItemRepaint(_parent);
+	_parent->history()->session().data().requestItemRepaint(_parent);
 	if (_check) {
 		_check->setActive(active);
 	}
@@ -147,7 +148,7 @@ void ItemBase::clickHandlerActiveChanged(
 void ItemBase::clickHandlerPressedChanged(
 		const ClickHandlerPtr &action,
 		bool pressed) {
-	Auth().data().requestItemRepaint(_parent);
+	_parent->history()->session().data().requestItemRepaint(_parent);
 	if (_check) {
 		_check->setPressed(pressed);
 	}
@@ -178,9 +179,10 @@ const style::RoundCheckbox &ItemBase::checkboxStyle() const {
 
 void ItemBase::ensureCheckboxCreated() {
 	if (!_check) {
-		_check = std::make_unique<Checkbox>(
-			[=] { Auth().data().requestItemRepaint(_parent); },
-			checkboxStyle());
+		const auto repaint = [=] {
+			_parent->history()->session().data().requestItemRepaint(_parent);
+		};
+		_check = std::make_unique<Checkbox>(repaint, checkboxStyle());
 	}
 }
 
@@ -201,8 +203,12 @@ void RadialProgressItem::clickHandlerActiveChanged(
 	ItemBase::clickHandlerActiveChanged(action, active);
 	if (action == _openl || action == _savel || action == _cancell) {
 		if (iconAnimated()) {
+			const auto repaint = [=] {
+				parent()->history()->session().data().requestItemRepaint(
+					parent());
+			};
 			_a_iconOver.start(
-				[=] { Auth().data().requestItemRepaint(parent()); },
+				repaint,
 				active ? 0. : 1.,
 				active ? 1. : 0.,
 				st::msgFileOverDuration);
@@ -224,7 +230,7 @@ void RadialProgressItem::radialAnimationCallback(crl::time now) const {
 		return _radial->update(dataProgress(), dataFinished(), now);
 	}();
 	if (!anim::Disabled() || updated) {
-		Auth().data().requestItemRepaint(parent());
+		parent()->history()->session().data().requestItemRepaint(parent());
 	}
 	if (!_radial->animating()) {
 		checkRadialFinished();
diff --git a/Telegram/SourceFiles/passport/passport_panel_edit_contact.cpp b/Telegram/SourceFiles/passport/passport_panel_edit_contact.cpp
index 581fb6bc6..eb966d68b 100644
--- a/Telegram/SourceFiles/passport/passport_panel_edit_contact.cpp
+++ b/Telegram/SourceFiles/passport/passport_panel_edit_contact.cpp
@@ -20,6 +20,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/text/text_utilities.h" // Ui::Text::ToUpper
 #include "boxes/abstract_box.h"
 #include "boxes/confirm_phone_box.h"
+#include "data/data_user.h"
+#include "main/main_session.h"
 #include "lang/lang_keys.h"
 #include "styles/style_passport.h"
 #include "styles/style_boxes.h"
@@ -274,6 +276,7 @@ void PanelEditContact::setupControls(
 			wrap.data(),
 			fieldStyle,
 			std::move(fieldPlaceholder),
+			ExtractPhonePrefix(_controller->bot()->session().user()->phone()),
 			data);
 	} else {
 		_field = Ui::CreateChild<Ui::MaskedInputField>(
diff --git a/Telegram/SourceFiles/settings/settings_calls.cpp b/Telegram/SourceFiles/settings/settings_calls.cpp
index 5a1e2cdd7..7d6204f9c 100644
--- a/Telegram/SourceFiles/settings/settings_calls.cpp
+++ b/Telegram/SourceFiles/settings/settings_calls.cpp
@@ -22,6 +22,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "layout.h"
 #include "styles/style_settings.h"
 #include "ui/widgets/continuous_sliders.h"
+#include "window/window_session_controller.h"
 #include "calls/calls_instance.h"
 
 #ifdef slots
@@ -128,7 +129,7 @@ void Calls::setupContent(not_null<Window::SessionController*> controller) {
 				: "default";
 			Global::SetCallOutputDeviceID(QString::fromStdString(deviceId));
 			Local::writeUserSettings();
-			if (const auto call = ::Calls::Current().currentCall()) {
+			if (const auto call = controller->session().calls().currentCall()) {
 				call->setCurrentAudioDevice(false, deviceId);
 			}
 		});
@@ -158,7 +159,7 @@ void Calls::setupContent(not_null<Window::SessionController*> controller) {
 		_needWriteSettings = true;
 		updateOutputLabel(value);
 		Global::SetCallOutputVolume(value);
-		if (const auto call = ::Calls::Current().currentCall()) {
+		if (const auto call = controller->session().calls().currentCall()) {
 			call->setAudioVolume(false, value / 100.0f);
 		}
 	};
@@ -206,7 +207,7 @@ void Calls::setupContent(not_null<Window::SessionController*> controller) {
 			if (_micTester) {
 				stopTestingMicrophone();
 			}
-			if (const auto call = ::Calls::Current().currentCall()) {
+			if (const auto call = controller->session().calls().currentCall()) {
 				call->setCurrentAudioDevice(true, deviceId);
 			}
 		});
@@ -236,9 +237,8 @@ void Calls::setupContent(not_null<Window::SessionController*> controller) {
 		_needWriteSettings = true;
 		updateInputLabel(value);
 		Global::SetCallInputVolume(value);
-		::Calls::Call *currentCall = ::Calls::Current().currentCall();
-		if (currentCall) {
-			currentCall->setAudioVolume(true, value / 100.0f);
+		if (const auto call = controller->session().calls().currentCall()) {
+			call->setAudioVolume(true, value / 100.0f);
 		}
 	};
 	inputSlider->resize(st::settingsAudioVolumeSlider.seekSize);
@@ -289,10 +289,10 @@ void Calls::setupContent(not_null<Window::SessionController*> controller) {
 		rpl::single(Global::CallAudioDuckingEnabled())
 	)->toggledValue() | rpl::filter([](bool enabled) {
 		return (enabled != Global::CallAudioDuckingEnabled());
-	}) | rpl::start_with_next([](bool enabled) {
+	}) | rpl::start_with_next([=](bool enabled) {
 		Global::SetCallAudioDuckingEnabled(enabled);
 		Local::writeUserSettings();
-		if (const auto call = ::Calls::Current().currentCall()) {
+		if (const auto call = controller->session().calls().currentCall()) {
 			call->setAudioDuckingEnabled(enabled);
 		}
 	}, content->lifetime());
diff --git a/Telegram/SourceFiles/settings/settings_chat.cpp b/Telegram/SourceFiles/settings/settings_chat.cpp
index 7a76f711b..dfc8ecf92 100644
--- a/Telegram/SourceFiles/settings/settings_chat.cpp
+++ b/Telegram/SourceFiles/settings/settings_chat.cpp
@@ -506,8 +506,8 @@ void SetupStickersEmoji(
 		st::settingsChatButton,
 		&st::settingsIconStickers,
 		st::settingsChatIconLeft
-	)->addClickHandler([] {
-		Ui::show(Box<StickersBox>(StickersBox::Section::Installed));
+	)->addClickHandler([=] {
+		Ui::show(Box<StickersBox>(session, StickersBox::Section::Installed));
 	});
 
 	AddButton(
diff --git a/Telegram/SourceFiles/settings/settings_information.cpp b/Telegram/SourceFiles/settings/settings_information.cpp
index bea3c39e0..fad025d36 100644
--- a/Telegram/SourceFiles/settings/settings_information.cpp
+++ b/Telegram/SourceFiles/settings/settings_information.cpp
@@ -217,6 +217,8 @@ void AddRow(
 void SetupRows(
 		not_null<Ui::VerticalLayout*> container,
 		not_null<UserData*> self) {
+	const auto session = &self->session();
+
 	AddSkip(container);
 
 	AddRow(
@@ -232,7 +234,7 @@ void SetupRows(
 		tr::lng_settings_phone_label(),
 		Info::Profile::PhoneValue(self),
 		tr::lng_profile_copy_phone(tr::now),
-		[=] { Ui::show(Box<ChangePhoneBox>(&self->session())); },
+		[=] { Ui::show(Box<ChangePhoneBox>(session)); },
 		st::settingsInfoPhone);
 
 	auto username = Info::Profile::UsernameValue(self);
@@ -267,7 +269,7 @@ void SetupRows(
 		std::move(label),
 		std::move(value),
 		tr::lng_context_copy_mention(tr::now),
-		[=] { Ui::show(Box<UsernameBox>()); },
+		[=] { Ui::show(Box<UsernameBox>(session)); },
 		st::settingsInfoUsername);
 
 	AddSkip(container, st::settingsInfoAfterSkip);
diff --git a/Telegram/SourceFiles/ui/widgets/input_fields.cpp b/Telegram/SourceFiles/ui/widgets/input_fields.cpp
index 9b12b33f8..a9b8fbd60 100644
--- a/Telegram/SourceFiles/ui/widgets/input_fields.cpp
+++ b/Telegram/SourceFiles/ui/widgets/input_fields.cpp
@@ -4317,14 +4317,15 @@ PhoneInput::PhoneInput(
 	QWidget *parent,
 	const style::InputField &st,
 	rpl::producer<QString> placeholder,
-	const QString &val)
-: MaskedInputField(parent, st, std::move(placeholder), val) {
-	QString phone(val);
-	if (phone.isEmpty()) {
+	const QString &defaultValue,
+	QString value)
+: MaskedInputField(parent, st, std::move(placeholder), value)
+, _defaultValue(defaultValue) {
+	if (value.isEmpty()) {
 		clearText();
 	} else {
-		int32 pos = phone.size();
-		correctValue(QString(), 0, phone, pos);
+		auto pos = value.size();
+		correctValue(QString(), 0, value, pos);
 	}
 }
 
@@ -4334,17 +4335,10 @@ void PhoneInput::focusInEvent(QFocusEvent *e) {
 }
 
 void PhoneInput::clearText() {
-	QString phone;
-	if (Main::Session::Exists()) {
-		const auto self = Auth().user();
-		QVector<int> newPattern = phoneNumberParse(self->phone());
-		if (!newPattern.isEmpty()) {
-			phone = self->phone().mid(0, newPattern.at(0));
-		}
-	}
-	setText(phone);
-	int32 pos = phone.size();
-	correctValue(QString(), 0, phone, pos);
+	auto value = _defaultValue;
+	setText(value);
+	auto pos = value.size();
+	correctValue(QString(), 0, value, pos);
 }
 
 void PhoneInput::paintAdditionalPlaceholder(Painter &p) {
diff --git a/Telegram/SourceFiles/ui/widgets/input_fields.h b/Telegram/SourceFiles/ui/widgets/input_fields.h
index 9d33a2c5d..bd9b9a2ba 100644
--- a/Telegram/SourceFiles/ui/widgets/input_fields.h
+++ b/Telegram/SourceFiles/ui/widgets/input_fields.h
@@ -770,7 +770,8 @@ public:
 		QWidget *parent,
 		const style::InputField &st,
 		rpl::producer<QString> placeholder,
-		const QString &val);
+		const QString &defaultValue,
+		QString value);
 
 	void clearText();
 
@@ -785,6 +786,7 @@ protected:
 	void paintAdditionalPlaceholder(Painter &p) override;
 
 private:
+	QString _defaultValue;
 	QVector<int> _pattern;
 	QString _additionalPlaceholder;