diff --git a/Telegram/SourceFiles/calls/calls.style b/Telegram/SourceFiles/calls/calls.style
index 9a5e9584f8..138cc0e611 100644
--- a/Telegram/SourceFiles/calls/calls.style
+++ b/Telegram/SourceFiles/calls/calls.style
@@ -1251,7 +1251,7 @@ groupCallTooltip: Tooltip(defaultTooltip) {
 }
 groupCallNiceTooltip: ImportantTooltip(defaultImportantTooltip) {
 	bg: importantTooltipBg;
-	padding: margins(10px, 1px, 10px, 3px);
+	padding: margins(10px, 3px, 10px, 5px);
 	radius: 4px;
 	arrow: 4px;
 }
diff --git a/Telegram/SourceFiles/calls/group/calls_group_common.h b/Telegram/SourceFiles/calls/group/calls_group_common.h
index d4c0c0f353..dd9a947ef1 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_common.h
+++ b/Telegram/SourceFiles/calls/group/calls_group_common.h
@@ -68,4 +68,13 @@ enum class Error {
 	DisabledNoScreen,
 };
 
+enum class StickedTooltip {
+	Camera     = 0x01,
+	Microphone = 0x02,
+};
+constexpr inline bool is_flag_type(StickedTooltip) {
+	return true;
+}
+using StickedTooltips = base::flags<StickedTooltip>;
+
 } // namespace Calls::Group
diff --git a/Telegram/SourceFiles/calls/group/calls_group_panel.cpp b/Telegram/SourceFiles/calls/group/calls_group_panel.cpp
index 7bd3589b54..23ca8847f8 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_panel.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_panel.cpp
@@ -54,6 +54,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "apiwrap.h" // api().kickParticipant.
 #include "webrtc/webrtc_video_track.h"
 #include "webrtc/webrtc_media_devices.h" // UniqueDesktopCaptureSource.
+#include "webrtc/webrtc_audio_input_tester.h"
 #include "styles/style_calls.h"
 #include "styles/style_layers.h"
 
@@ -71,6 +72,10 @@ constexpr auto kRecordingOpacity = 0.6;
 constexpr auto kStartNoConfirmation = TimeId(10);
 constexpr auto kControlsBackgroundOpacity = 0.8;
 constexpr auto kOverrideActiveColorBgAlpha = 172;
+constexpr auto kMicrophoneTooltipAfterLoudCount = 3;
+constexpr auto kDropLoudAfterQuietCount = 5;
+constexpr auto kMicrophoneTooltipLevelThreshold = 0.2;
+constexpr auto kMicrophoneTooltipCheckInterval = crl::time(500);
 
 } // namespace
 
@@ -84,6 +89,49 @@ struct Panel::ControlsBackgroundNarrow {
 	Ui::RpWidget blocker;
 };
 
+class Panel::MicLevelTester final {
+public:
+	explicit MicLevelTester(Fn<void()> show);
+
+	[[nodiscard]] bool showTooltip() const;
+
+private:
+	void check();
+
+	Fn<void()> _show;
+	base::Timer _timer;
+	Webrtc::AudioInputTester _tester;
+	int _loudCount = 0;
+	int _quietCount = 0;
+
+};
+
+Panel::MicLevelTester::MicLevelTester(Fn<void()> show)
+: _show(std::move(show))
+, _timer([=] { check(); })
+, _tester(
+		Core::App().settings().callAudioBackend(),
+		Core::App().settings().callInputDeviceId()) {
+	_timer.callEach(kMicrophoneTooltipCheckInterval);
+}
+
+bool Panel::MicLevelTester::showTooltip() const {
+	return (_loudCount >= kMicrophoneTooltipAfterLoudCount);
+}
+
+void Panel::MicLevelTester::check() {
+	const auto level = _tester.getAndResetLevel();
+	if (level >= kMicrophoneTooltipLevelThreshold) {
+		_quietCount = 0;
+		if (++_loudCount >= kMicrophoneTooltipAfterLoudCount) {
+			_show();
+		}
+	} else if (_loudCount > 0 && ++_quietCount >= kDropLoudAfterQuietCount) {
+		_quietCount = 0;
+		_loudCount = 0;
+	}
+}
+
 Panel::Panel(not_null<GroupCall*> call)
 : _call(call)
 , _peer(call->peer())
@@ -112,6 +160,7 @@ Panel::Panel(not_null<GroupCall*> call)
 			: Ui::CallMuteButtonType::ScheduledSilent),
 	}))
 , _hangup(widget(), st::groupCallHangup)
+, _stickedTooltipsShown(Core::App().settings().hiddenGroupCallTooltips())
 , _toasts(std::make_unique<Toasts>(this)) {
 	_layerBg->setStyleOverrides(&st::groupCallBox, &st::groupCallLayerBox);
 	_layerBg->setHideByBackgroundClick(true);
@@ -418,7 +467,9 @@ void Panel::initControls() {
 	}
 
 	_call->stateValue(
-	) | rpl::filter([](State state) {
+	) | rpl::before_next([=] {
+		showStickedTooltip();
+	}) | rpl::filter([](State state) {
 		return (state == State::HangingUp)
 			|| (state == State::Ended)
 			|| (state == State::FailedHangingUp)
@@ -515,11 +566,6 @@ void Panel::refreshVideoButtons(std::optional<bool> overrideWideMode) {
 			}
 			_video->setProgress(sharing ? 1. : 0.);
 		}, _video->lifetime());
-		_call->mutedValue(
-		) | rpl::start_with_next([=] {
-			updateButtonsGeometry();
-			showStickedTooltip();
-		}, _video->lifetime());
 	}
 	if (!_screenShare) {
 		_screenShare.create(widget(), st::groupCallScreenShareSmall);
@@ -562,7 +608,8 @@ void Panel::hideStickedTooltip(
 	if (hide != StickedTooltipHide::Unavailable) {
 		_stickedTooltipsShown |= type;
 		if (hide == StickedTooltipHide::Discarded) {
-			// #TODO calls save to settings.
+			Core::App().settings().setHiddenGroupCallTooltip(type);
+			Core::App().saveSettingsDelayed();
 		}
 	}
 	const auto control = (type == StickedTooltip::Camera)
@@ -886,6 +933,9 @@ void Panel::raiseControls() {
 		}
 	}
 	_mute->raise();
+	if (_niceTooltip) {
+		_niceTooltip->raise();
+	}
 }
 
 void Panel::setupVideo(not_null<Viewport*> viewport) {
@@ -1052,6 +1102,18 @@ void Panel::subscribeToChanges(not_null<Data::GroupCall*> real) {
 		refreshTopButton();
 	}, widget()->lifetime());
 
+	_call->mutedValue(
+	) | rpl::skip(1) | rpl::start_with_next([=](MuteState state) {
+		updateButtonsGeometry();
+		if (state == MuteState::Active
+			|| state == MuteState::PushToTalk) {
+			hideStickedTooltip(
+				StickedTooltip::Microphone,
+				StickedTooltipHide::Activated);
+		}
+		showStickedTooltip();
+	}, widget()->lifetime());
+
 	updateControlsGeometry();
 }
 
@@ -1407,7 +1469,10 @@ bool Panel::updateMode() {
 		_call->showVideoEndpointLarge({});
 	}
 	refreshVideoButtons(wide);
-	_niceTooltip.destroy();
+	if (!_stickedTooltipClose
+		|| _niceTooltipControl.data() != _mute->outer().get()) {
+		_niceTooltip.destroy();
+	}
 	_mode = mode;
 	if (_title) {
 		_title->setTextColorOverride(wide
@@ -1631,7 +1696,10 @@ void Panel::trackControlOver(not_null<Ui::RpWidget*> control, bool over) {
 
 void Panel::showStickedTooltip() {
 	static const auto kHasCamera = !Webrtc::GetVideoInputList().empty();
+	const auto callReady = (_call->state() == State::Joined
+		|| _call->state() == State::Connecting);
 	if (!(_stickedTooltipsShown & StickedTooltip::Camera)
+		&& callReady
 		&& (_mode.current() == PanelMode::Wide)
 		&& _video
 		&& _call->videoIsWorking()
@@ -1645,13 +1713,25 @@ void Panel::showStickedTooltip() {
 		StickedTooltipHide::Unavailable);
 
 	if (!(_stickedTooltipsShown & StickedTooltip::Microphone)
-		&& (_mode.current() == PanelMode::Wide)
+		&& callReady
 		&& _mute
-		&& !_call->mutedByAdmin()
-		&& false) { // Check if there is incoming sound.
-		showNiceTooltip(_mute->outer(), NiceTooltipType::Sticked);
+		&& !_call->mutedByAdmin()) {
+		if (_stickedTooltipClose) {
+			// Showing already.
+			return;
+		} else if (!_micLevelTester) {
+			// Check if there is incoming sound.
+			_micLevelTester = std::make_unique<MicLevelTester>([=] {
+				showStickedTooltip();
+			});
+		}
+		if (_micLevelTester->showTooltip()) {
+			_micLevelTester = nullptr;
+			showNiceTooltip(_mute->outer(), NiceTooltipType::Sticked);
+		}
 		return;
 	}
+	_micLevelTester = nullptr;
 	hideStickedTooltip(
 		StickedTooltip::Microphone,
 		StickedTooltipHide::Unavailable);
@@ -1685,11 +1765,12 @@ void Panel::showNiceTooltip(
 		}
 		return rpl::producer<QString>();
 	}();
-	if (!text
-		|| _wideControlsAnimation.animating()
-		|| !_wideControlsShown
-		|| _stickedTooltipClose) {
+	if (!text || _stickedTooltipClose) {
 		return;
+	} else if (_wideControlsAnimation.animating() || !_wideControlsShown) {
+		if (type == NiceTooltipType::Normal) {
+			return;
+		}
 	}
 	const auto inner = [&]() -> Ui::RpWidget* {
 		const auto normal = (type == NiceTooltipType::Normal);
diff --git a/Telegram/SourceFiles/calls/group/calls_group_panel.h b/Telegram/SourceFiles/calls/group/calls_group_panel.h
index 4e2a7cc49b..ddc053bfba 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_panel.h
+++ b/Telegram/SourceFiles/calls/group/calls_group_panel.h
@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/timer.h"
 #include "base/object_ptr.h"
 #include "calls/group/calls_group_call.h"
+#include "calls/group/calls_group_common.h"
 #include "calls/group/calls_choose_join_as.h"
 #include "calls/group/ui/desktop_capture_choose_source.h"
 #include "ui/effects/animations.h"
@@ -64,6 +65,7 @@ class Toasts;
 class Members;
 class Viewport;
 enum class PanelMode;
+enum class StickedTooltip;
 
 class Panel final : private Ui::DesktopCapture::ChooseSourceDelegate {
 public:
@@ -88,19 +90,12 @@ private:
 		Normal,
 		Sticked,
 	};
-	enum class StickedTooltip {
-		Camera = 0x01,
-		Microphone = 0x02,
-	};
-	friend constexpr inline bool is_flag_type(StickedTooltip) {
-		return true;
-	};
-	using StickedTooltips = base::flags<StickedTooltip>;
 	enum class StickedTooltipHide {
 		Unavailable,
 		Activated,
 		Discarded,
 	};
+	class MicLevelTester;
 
 	std::unique_ptr<Ui::Window> createWindow();
 	[[nodiscard]] not_null<Ui::RpWidget*> widget() const;
@@ -236,6 +231,8 @@ private:
 	const std::unique_ptr<Toasts> _toasts;
 	base::weak_ptr<Ui::Toast::Instance> _lastToast;
 
+	std::unique_ptr<MicLevelTester> _micLevelTester;
+
 	rpl::lifetime _peerLifetime;
 
 };
diff --git a/Telegram/SourceFiles/calls/group/calls_group_settings.cpp b/Telegram/SourceFiles/calls/group/calls_group_settings.cpp
index 2253df03df..66087e3095 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_settings.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_settings.cpp
@@ -493,8 +493,10 @@ void SettingsBox(
 				tr::now,
 				lt_delay,
 				FormatDelay(delay)));
-			Core::App().settings().setGroupCallPushToTalkDelay(delay);
-			applyAndSave();
+			if (Core::App().settings().groupCallPushToTalkDelay() != delay) {
+				Core::App().settings().setGroupCallPushToTalkDelay(delay);
+				applyAndSave();
+			}
 		};
 		callback(value);
 		const auto slider = pushToTalkInner->add(
diff --git a/Telegram/SourceFiles/core/core_settings.cpp b/Telegram/SourceFiles/core/core_settings.cpp
index e5a1d2ef79..f17c2c6a66 100644
--- a/Telegram/SourceFiles/core/core_settings.cpp
+++ b/Telegram/SourceFiles/core/core_settings.cpp
@@ -15,6 +15,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "base/platform/base_platform_info.h"
 #include "webrtc/webrtc_create_adm.h"
 #include "ui/gl/gl_detection.h"
+#include "calls/group/calls_group_common.h"
 #include "facades.h"
 
 namespace Core {
@@ -94,23 +95,35 @@ QByteArray Settings::serialize() const {
 		+ sizeof(qint32) * 5
 		+ Serialize::stringSize(_downloadPath.current())
 		+ Serialize::bytearraySize(_downloadPathBookmark)
-		+ sizeof(qint32) * 12
+		+ sizeof(qint32) * 9
 		+ Serialize::stringSize(_callOutputDeviceId)
 		+ Serialize::stringSize(_callInputDeviceId)
-		+ Serialize::stringSize(_callVideoInputDeviceId)
-		+ sizeof(qint32) * 5
-		+ Serialize::bytearraySize(proxy);
+		+ sizeof(qint32) * 5;
 	for (const auto &[key, value] : _soundOverrides) {
 		size += Serialize::stringSize(key) + Serialize::stringSize(value);
 	}
+	size += sizeof(qint32) * 13
+		+ Serialize::bytearraySize(_videoPipGeometry)
+		+ sizeof(qint32)
+		+ (_dictionariesEnabled.current().size() * sizeof(quint64))
+		+ sizeof(qint32) * 12
+		+ Serialize::stringSize(_callVideoInputDeviceId)
+		+ sizeof(qint32) * 2
+		+ Serialize::bytearraySize(_groupCallPushToTalkShortcut)
+		+ sizeof(qint64)
+		+ sizeof(qint32) * 2
+		+ Serialize::bytearraySize(windowPosition)
+		+ sizeof(qint32);
 	for (const auto &[id, rating] : recentEmojiPreloadData) {
 		size += Serialize::stringSize(id) + sizeof(quint16);
 	}
+	size += sizeof(qint32);
 	for (const auto &[id, variant] : _emojiVariants) {
 		size += Serialize::stringSize(id) + sizeof(quint8);
 	}
-	size += Serialize::bytearraySize(_videoPipGeometry);
-	size += Serialize::bytearraySize(windowPosition);
+	size += sizeof(qint32) * 3
+		+ Serialize::bytearraySize(proxy)
+		+ sizeof(qint32);
 
 	auto result = QByteArray();
 	result.reserve(size);
@@ -200,8 +213,9 @@ QByteArray Settings::serialize() const {
 		stream
 			<< qint32(_disableOpenGL ? 1 : 0)
 			<< qint32(_groupCallNoiseSuppression ? 1 : 0)
-			<< _workMode.current()
-			<< proxy;
+			<< qint32(_workMode.current())
+			<< proxy
+			<< qint32(_hiddenGroupCallTooltips.value());
 	}
 	return result;
 }
@@ -281,6 +295,7 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	qint32 groupCallNoiseSuppression = _groupCallNoiseSuppression ? 1 : 0;
 	qint32 workMode = static_cast<qint32>(_workMode.current());
 	QByteArray proxy;
+	qint32 hiddenGroupCallTooltips = qint32(_hiddenGroupCallTooltips.value());
 
 	stream >> themesAccentColors;
 	if (!stream.atEnd()) {
@@ -421,6 +436,9 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	if (!stream.atEnd()) {
 		stream >> proxy;
 	}
+	if (!stream.atEnd()) {
+		stream >> hiddenGroupCallTooltips;
+	}
 	if (stream.status() != QDataStream::Ok) {
 		LOG(("App Error: "
 			"Bad data for Core::Settings::constructFromSerialized()"));
@@ -540,6 +558,16 @@ void Settings::addFromSerialized(const QByteArray &serialized) {
 	case WorkMode::TrayOnly:
 	case WorkMode::WindowOnly: _workMode = uncheckedWorkMode; break;
 	}
+	_hiddenGroupCallTooltips = [&] {
+		using Tooltip = Calls::Group::StickedTooltip;
+		return Tooltip(0)
+			| ((hiddenGroupCallTooltips & int(Tooltip::Camera))
+				? Tooltip::Camera
+				: Tooltip(0))
+			| ((hiddenGroupCallTooltips & int(Tooltip::Microphone))
+				? Tooltip::Microphone
+				: Tooltip(0));
+	}();
 }
 
 QString Settings::getSoundPath(const QString &key) const {
@@ -795,6 +823,7 @@ void Settings::resetOnLastLogout() {
 	_notifyFromAll = true;
 	_tabbedReplacedWithInfo = false; // per-window
 	_systemDarkModeEnabled = false;
+	_hiddenGroupCallTooltips = 0;
 
 	_recentEmojiPreload.clear();
 	_recentEmoji.clear();
diff --git a/Telegram/SourceFiles/core/core_settings.h b/Telegram/SourceFiles/core/core_settings.h
index de6707e236..1eedd75923 100644
--- a/Telegram/SourceFiles/core/core_settings.h
+++ b/Telegram/SourceFiles/core/core_settings.h
@@ -11,6 +11,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "window/themes/window_themes_embedded.h"
 #include "ui/chat/attach/attach_send_files_way.h"
 #include "platform/platform_notifications_manager.h"
+#include "base/flags.h"
 #include "emoji.h"
 
 enum class RectPart;
@@ -27,6 +28,10 @@ namespace Webrtc {
 enum class Backend;
 } // namespace Webrtc
 
+namespace Calls::Group {
+enum class StickedTooltip;
+} // namespace Calls::Group
+
 namespace Core {
 
 struct WindowPosition {
@@ -574,6 +579,13 @@ public:
 		_disableOpenGL = value;
 	}
 
+	[[nodiscard]] base::flags<Calls::Group::StickedTooltip> hiddenGroupCallTooltips() const {
+		return _hiddenGroupCallTooltips;
+	}
+	void setHiddenGroupCallTooltip(Calls::Group::StickedTooltip value) {
+		_hiddenGroupCallTooltips |= value;
+	}
+
 	[[nodiscard]] static bool ThirdColumnByDefault();
 	[[nodiscard]] static float64 DefaultDialogsWidthRatio();
 	[[nodiscard]] static qint32 SerializePlaybackSpeed(float64 speed) {
@@ -671,6 +683,7 @@ private:
 	WindowPosition _windowPosition; // per-window
 	bool _disableOpenGL = false;
 	rpl::variable<WorkMode> _workMode = WorkMode::WindowAndTray;
+	base::flags<Calls::Group::StickedTooltip> _hiddenGroupCallTooltips;
 
 	bool _tabbedReplacedWithInfo = false; // per-window
 	rpl::event_stream<bool> _tabbedReplacedWithInfoValue; // per-window