diff --git a/submodules/AccountContext/Sources/PresentationCallManager.swift b/submodules/AccountContext/Sources/PresentationCallManager.swift
index aae54bbca7..7c12ee423b 100644
--- a/submodules/AccountContext/Sources/PresentationCallManager.swift
+++ b/submodules/AccountContext/Sources/PresentationCallManager.swift
@@ -163,21 +163,29 @@ public struct PresentationGroupCallState: Equatable {
         case connected
     }
     
+    public enum DefaultParticipantMuteState {
+        case unmuted
+        case muted
+    }
+    
     public var networkState: NetworkState
     public var canManageCall: Bool
     public var adminIds: Set<PeerId>
     public var muteState: GroupCallParticipantsContext.Participant.MuteState?
+    public var defaultParticipantMuteState: DefaultParticipantMuteState?
     
     public init(
         networkState: NetworkState,
         canManageCall: Bool,
         adminIds: Set<PeerId>,
-        muteState: GroupCallParticipantsContext.Participant.MuteState?
+        muteState: GroupCallParticipantsContext.Participant.MuteState?,
+        defaultParticipantMuteState: DefaultParticipantMuteState?
     ) {
         self.networkState = networkState
         self.canManageCall = canManageCall
         self.adminIds = adminIds
         self.muteState = muteState
+        self.defaultParticipantMuteState = defaultParticipantMuteState
     }
 }
 
@@ -263,6 +271,7 @@ public protocol PresentationGroupCall: class {
     
     func toggleIsMuted()
     func setIsMuted(action: PresentationGroupCallMuteAction)
+    func updateDefaultParticipantsAreMuted(isMuted: Bool)
     func setCurrentAudioOutput(_ output: AudioSessionOutput)
     
     func updateMuteState(peerId: PeerId, isMuted: Bool)
diff --git a/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift b/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift
index fed09e9f16..0b2ae4c1cb 100644
--- a/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift
+++ b/submodules/TelegramCallsUI/Sources/PresentationGroupCall.swift
@@ -21,7 +21,8 @@ private extension PresentationGroupCallState {
             networkState: .connecting,
             canManageCall: false,
             adminIds: Set(),
-            muteState: GroupCallParticipantsContext.Participant.MuteState(canUnmute: true)
+            muteState: GroupCallParticipantsContext.Participant.MuteState(canUnmute: true),
+            defaultParticipantMuteState: nil
         )
     }
 }
@@ -389,7 +390,7 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                                     }
                                 }
                             }
-                        case let .call(isTerminated):
+                        case let .call(isTerminated, _):
                             if isTerminated {
                                 strongSelf._canBeRemoved.set(.single(true))
                             }
@@ -579,6 +580,9 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                 self.summaryInfoState.set(.single(SummaryInfoState(info: callInfo)))
                 
                 self.stateValue.canManageCall = initialState.isCreator || initialState.adminIds.contains(self.accountContext.account.peerId)
+                if self.stateValue.canManageCall && initialState.defaultParticipantsAreMuted.canChange {
+                    self.stateValue.defaultParticipantMuteState = initialState.defaultParticipantsAreMuted.isMuted ? .muted : .unmuted
+                }
                 
                 self.ssrcMapping.removeAll()
                 var ssrcs: [UInt32] = []
@@ -640,6 +644,10 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
                     
                     strongSelf.stateValue.adminIds = state.adminIds
                     
+                    if (state.isCreator || state.adminIds.contains(strongSelf.accountContext.account.peerId)) && state.defaultParticipantsAreMuted.canChange {
+                        strongSelf.stateValue.defaultParticipantMuteState = state.defaultParticipantsAreMuted.isMuted ? .muted : .unmuted
+                    }
+                    
                     strongSelf.summaryParticipantsState.set(.single(SummaryParticipantsState(
                         participantCount: state.totalCount,
                         topParticipants: topParticipants,
@@ -921,4 +929,8 @@ public final class PresentationGroupCallImpl: PresentationGroupCall {
             }
         }
     }
+    
+    public func updateDefaultParticipantsAreMuted(isMuted: Bool) {
+        self.participantsContext?.updateDefaultParticipantsAreMuted(isMuted: isMuted)
+    }
 }
diff --git a/submodules/TelegramCallsUI/Sources/VoiceChatController.swift b/submodules/TelegramCallsUI/Sources/VoiceChatController.swift
index 9eb374b9d6..f984fa4915 100644
--- a/submodules/TelegramCallsUI/Sources/VoiceChatController.swift
+++ b/submodules/TelegramCallsUI/Sources/VoiceChatController.swift
@@ -614,16 +614,36 @@ public final class VoiceChatController: ViewController {
    
                 var items: [ContextMenuItem] = []
                 
-                if let callState = strongSelf.callState, callState.canManageCall {
+                if let callState = strongSelf.callState, callState.canManageCall, let defaultParticipantMuteState = callState.defaultParticipantMuteState {
+                    let isMuted = defaultParticipantMuteState == .muted
+                    
                     items.append(.action(ContextMenuActionItem(text: strongSelf.presentationData.strings.VoiceChat_SpeakPermissionEveryone, icon: { theme in
-                        return generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Check"), color: theme.actionSheet.primaryTextColor)
+                        if isMuted {
+                            return nil
+                        } else {
+                            return generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Check"), color: theme.actionSheet.primaryTextColor)
+                        }
                     }, action: { _, f in
                         f(.dismissWithoutContent)
                       
+                        guard let strongSelf = self else {
+                            return
+                        }
+                        strongSelf.call.updateDefaultParticipantsAreMuted(isMuted: false)
                     })))
-                    items.append(.action(ContextMenuActionItem(text: strongSelf.presentationData.strings.VoiceChat_SpeakPermissionAdmin, icon: { _ in return nil}, action: { _, f in
+                    items.append(.action(ContextMenuActionItem(text: strongSelf.presentationData.strings.VoiceChat_SpeakPermissionAdmin, icon: { theme in
+                        if !isMuted {
+                            return nil
+                        } else {
+                            return generateTintedImage(image: UIImage(bundleImageName: "Chat/Context Menu/Check"), color: theme.actionSheet.primaryTextColor)
+                        }
+                    }, action: { _, f in
                         f(.dismissWithoutContent)
                       
+                        guard let strongSelf = self else {
+                            return
+                        }
+                        strongSelf.call.updateDefaultParticipantsAreMuted(isMuted: true)
                     })))
                 }
                 
diff --git a/submodules/TelegramCore/Sources/AccountStateManagementUtils.swift b/submodules/TelegramCore/Sources/AccountStateManagementUtils.swift
index f32c0b2ef0..c42b9760f5 100644
--- a/submodules/TelegramCore/Sources/AccountStateManagementUtils.swift
+++ b/submodules/TelegramCore/Sources/AccountStateManagementUtils.swift
@@ -2970,11 +2970,24 @@ func replayFinalState(accountManager: AccountManager, postbox: Postbox, accountP
                                 return current
                             }
                         })
+                        
+                        switch call {
+                        case let .groupCall(flags, _, _, _, _, _):
+                            let isMuted = (flags & (1 << 1)) != 0
+                            let canChange = (flags & (1 << 2)) != 0
+                            let defaultParticipantsAreMuted = GroupCallParticipantsContext.State.DefaultParticipantsAreMuted(isMuted: isMuted, canChange: isMuted)
+                            updatedGroupCallParticipants.append((
+                                info.id,
+                                .call(isTerminated: false, defaultParticipantsAreMuted: defaultParticipantsAreMuted)
+                            ))
+                        default:
+                            break
+                        }
                     }
                 case let .groupCallDiscarded(callId, _, _):
                     updatedGroupCallParticipants.append((
                         callId,
-                        .call(isTerminated: true)
+                        .call(isTerminated: true, defaultParticipantsAreMuted: GroupCallParticipantsContext.State.DefaultParticipantsAreMuted(isMuted: false, canChange: false))
                     ))
                     
                     transaction.updatePeerCachedData(peerIds: Set([peerId]), update: { _, current in
diff --git a/submodules/TelegramCore/Sources/GroupCalls.swift b/submodules/TelegramCore/Sources/GroupCalls.swift
index 55a845ec94..7781c12750 100644
--- a/submodules/TelegramCore/Sources/GroupCalls.swift
+++ b/submodules/TelegramCore/Sources/GroupCalls.swift
@@ -244,6 +244,7 @@ public func getGroupCallParticipants(account: Account, callId: Int64, accessHash
                 nextParticipantsFetchOffset: nextParticipantsFetchOffset,
                 adminIds: Set(),
                 isCreator: false,
+                defaultParticipantsAreMuted: GroupCallParticipantsContext.State.DefaultParticipantsAreMuted(isMuted: false, canChange: false),
                 totalCount: totalCount,
                 version: version
             )
@@ -322,6 +323,16 @@ public func joinGroupCall(account: Account, peerId: PeerId, callId: Int64, acces
                 switch update {
                 case let .updateGroupCall(_, call):
                     maybeParsedCall = GroupCallInfo(call)
+                    
+                    switch call {
+                    case let .groupCall(flags, _, _, _, _, _):
+                        let isMuted = (flags & (1 << 1)) != 0
+                        let canChange = (flags & (1 << 2)) != 0
+                        state.defaultParticipantsAreMuted = GroupCallParticipantsContext.State.DefaultParticipantsAreMuted(isMuted: isMuted, canChange: canChange)
+                    default:
+                        break
+                    }
+                    
                     break loop
                 default:
                     break
@@ -525,10 +536,16 @@ public final class GroupCallParticipantsContext {
     }
     
     public struct State: Equatable {
+        public struct DefaultParticipantsAreMuted: Equatable {
+            public var isMuted: Bool
+            public var canChange: Bool
+        }
+        
         public var participants: [Participant]
         public var nextParticipantsFetchOffset: String?
         public var adminIds: Set<PeerId>
         public var isCreator: Bool
+        public var defaultParticipantsAreMuted: DefaultParticipantsAreMuted
         public var totalCount: Int
         public var version: Int32
     }
@@ -582,7 +599,7 @@ public final class GroupCallParticipantsContext {
         }
         
         case state(update: StateUpdate)
-        case call(isTerminated: Bool)
+        case call(isTerminated: Bool, defaultParticipantsAreMuted: State.DefaultParticipantsAreMuted)
     }
     
     private let account: Account
@@ -631,6 +648,8 @@ public final class GroupCallParticipantsContext {
     private let updatesDisposable = MetaDisposable()
     private var activitiesDisposable: Disposable?
     
+    private let updateDefaultMuteDisposable = MetaDisposable()
+    
     public init(account: Account, peerId: PeerId, id: Int64, accessHash: Int64, state: State) {
         self.account = account
         self.id = id
@@ -703,6 +722,7 @@ public final class GroupCallParticipantsContext {
                         nextParticipantsFetchOffset: strongSelf.stateValue.state.nextParticipantsFetchOffset,
                         adminIds: strongSelf.stateValue.state.adminIds,
                         isCreator: strongSelf.stateValue.state.isCreator,
+                        defaultParticipantsAreMuted: strongSelf.stateValue.state.defaultParticipantsAreMuted,
                         totalCount: strongSelf.stateValue.state.totalCount,
                         version: strongSelf.stateValue.state.version
                     ),
@@ -716,6 +736,7 @@ public final class GroupCallParticipantsContext {
         self.disposable.dispose()
         self.updatesDisposable.dispose()
         self.activitiesDisposable?.dispose()
+        self.updateDefaultMuteDisposable.dispose()
     }
     
     public func addUpdates(updates: [Update]) {
@@ -723,6 +744,8 @@ public final class GroupCallParticipantsContext {
         for update in updates {
             if case let .state(update) = update {
                 stateUpdates.append(update)
+            } else if case let .call(_, defaultParticipantsAreMuted) = update {
+                self.stateValue.state.defaultParticipantsAreMuted = defaultParticipantsAreMuted
             }
         }
         
@@ -835,6 +858,7 @@ public final class GroupCallParticipantsContext {
             let nextParticipantsFetchOffset = strongSelf.stateValue.state.nextParticipantsFetchOffset
             let adminIds = strongSelf.stateValue.state.adminIds
             let isCreator = strongSelf.stateValue.state.isCreator
+            let defaultParticipantsAreMuted = strongSelf.stateValue.state.defaultParticipantsAreMuted
             
             updatedParticipants.sort()
             for i in 0 ..< updatedParticipants.count {
@@ -852,6 +876,7 @@ public final class GroupCallParticipantsContext {
                     nextParticipantsFetchOffset: nextParticipantsFetchOffset,
                     adminIds: adminIds,
                     isCreator: isCreator,
+                    defaultParticipantsAreMuted: defaultParticipantsAreMuted,
                     totalCount: updatedTotalCount,
                     version: update.version
                 ),
@@ -953,6 +978,22 @@ public final class GroupCallParticipantsContext {
             }
         }))
     }
+    
+    public func updateDefaultParticipantsAreMuted(isMuted: Bool) {
+        if isMuted == self.stateValue.state.defaultParticipantsAreMuted.isMuted {
+            return
+        }
+        self.stateValue.state.defaultParticipantsAreMuted.isMuted = isMuted
+        
+
+        self.updateDefaultMuteDisposable.set((self.account.network.request(Api.functions.phone.toggleGroupCallSettings(flags: 1 << 0, call: .inputGroupCall(id: self.id, accessHash: self.accessHash), joinMuted: isMuted ? .boolTrue : .boolFalse))
+        |> deliverOnMainQueue).start(next: { [weak self] updates in
+            guard let strongSelf = self else {
+                return
+            }
+            strongSelf.account.stateManager.addUpdates(updates)
+        }))
+    }
 }
 
 extension GroupCallParticipantsContext.Update.StateUpdate {