diff --git a/app/src/main/java/one/mixin/android/vo/CallStateLiveData.kt b/app/src/main/java/one/mixin/android/vo/CallStateLiveData.kt
index c1fed2173c..228e324f7d 100644
--- a/app/src/main/java/one/mixin/android/vo/CallStateLiveData.kt
+++ b/app/src/main/java/one/mixin/android/vo/CallStateLiveData.kt
@@ -170,7 +170,7 @@ enum class CallType {
     Group,
 }
 
-private const val JOIN_MUTE_MIC_COUNT = 7
+private const val JOIN_MUTE_MIC_COUNT = 8
 
 class CallStateLiveData : LiveData<CallService.CallState>() {
     var state: CallService.CallState = CallService.CallState.STATE_IDLE
@@ -296,10 +296,10 @@ class CallStateLiveData : LiveData<CallService.CallState>() {
     }
 
     fun needMuteWhenJoin(conversationId: String): Boolean =
-        getUsersCount(conversationId) > JOIN_MUTE_MIC_COUNT
+        getUsersCount(conversationId) >= JOIN_MUTE_MIC_COUNT
 
     fun needMuteWhenJoin(groupCallState: GroupCallState?): Boolean =
-        (groupCallState?.userIds()?.size ?: 0) > JOIN_MUTE_MIC_COUNT
+        (groupCallState?.userIds()?.size ?: 0) >= JOIN_MUTE_MIC_COUNT
 
     fun getUsersCount(conversationId: String): Int =
         getUsers(conversationId)?.size ?: 0
diff --git a/app/src/main/java/one/mixin/android/webrtc/GroupCallService.kt b/app/src/main/java/one/mixin/android/webrtc/GroupCallService.kt
index bf3f782cd3..1569d7d123 100644
--- a/app/src/main/java/one/mixin/android/webrtc/GroupCallService.kt
+++ b/app/src/main/java/one/mixin/android/webrtc/GroupCallService.kt
@@ -64,6 +64,7 @@ class GroupCallService : CallService() {
     private val scheduledExecutors = Executors.newScheduledThreadPool(1)
     private val scheduledFutures = mutableMapOf<String, ScheduledFuture<*>>()
     private var reconnectingTimeoutFuture: ScheduledFuture<*>? = null
+    private var initialMuteHandled = false
 
     @Inject
     lateinit var chatWebSocket: ChatWebSocket
@@ -603,14 +604,14 @@ class GroupCallService : CallService() {
     override fun needInitWebRtc(action: String) = action != ACTION_CHECK_PEER
 
     override fun onConnected() {
-        val fromReconnecting = callState.reconnecting
         super.onConnected()
         callExecutor.execute {
             reconnectTimeoutCount = 0
             reconnectingTimeoutFuture?.cancel(true)
 
-            if (fromReconnecting) return@execute
+            if (initialMuteHandled) return@execute
             val cid = callState.conversationId ?: return@execute
+            initialMuteHandled = true
             val needMute = callState.needMuteWhenJoin(cid)
             if (needMute) {
                 muteAudio<GroupCallService>(this, true)
@@ -749,6 +750,7 @@ class GroupCallService : CallService() {
     override fun onCallDisconnected() {
         disposable?.dispose()
         reconnectTimeoutCount = 0
+        initialMuteHandled = false
     }
 
     override fun onDestroyed() {