diff --git a/apps/android/app/src/main/java/chat/simplex/app/model/ChatModel.kt b/apps/android/app/src/main/java/chat/simplex/app/model/ChatModel.kt
index 8080f52f7f..863a0ab475 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/model/ChatModel.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/model/ChatModel.kt
@@ -729,6 +729,7 @@ data class Contact(
     ChatFeature.TimedMessages -> mergedPreferences.timedMessages.enabled.forUser
     ChatFeature.FullDelete -> mergedPreferences.fullDelete.enabled.forUser
     ChatFeature.Voice -> mergedPreferences.voice.enabled.forUser
+    ChatFeature.Calls -> mergedPreferences.calls.enabled.forUser
   }
   override val timedMessagesTTL: Int? get() = with(mergedPreferences.timedMessages) { if (enabled.forUser) userPreference.pref.ttl else null }
   override val displayName get() = localAlias.ifEmpty { profile.displayName }
@@ -747,12 +748,14 @@ data class Contact(
     ChatFeature.TimedMessages -> mergedPreferences.timedMessages.contactPreference.allow != FeatureAllowed.NO
     ChatFeature.FullDelete -> mergedPreferences.fullDelete.contactPreference.allow != FeatureAllowed.NO
     ChatFeature.Voice -> mergedPreferences.voice.contactPreference.allow != FeatureAllowed.NO
+    ChatFeature.Calls -> mergedPreferences.calls.contactPreference.allow != FeatureAllowed.NO
   }
 
   fun userAllowsFeature(feature: ChatFeature): Boolean = when (feature) {
     ChatFeature.TimedMessages -> mergedPreferences.timedMessages.userPreference.pref.allow != FeatureAllowed.NO
     ChatFeature.FullDelete -> mergedPreferences.fullDelete.userPreference.pref.allow != FeatureAllowed.NO
     ChatFeature.Voice -> mergedPreferences.voice.userPreference.pref.allow != FeatureAllowed.NO
+    ChatFeature.Calls -> mergedPreferences.calls.userPreference.pref.allow != FeatureAllowed.NO
   }
 
   companion object {
@@ -882,6 +885,7 @@ data class GroupInfo (
     ChatFeature.TimedMessages -> fullGroupPreferences.timedMessages.on
     ChatFeature.FullDelete -> fullGroupPreferences.fullDelete.on
     ChatFeature.Voice -> fullGroupPreferences.voice.on
+    ChatFeature.Calls -> false
   }
   override val timedMessagesTTL: Int? get() = with(fullGroupPreferences.timedMessages) { if (on) ttl else null }
   override val displayName get() = groupProfile.displayName
diff --git a/apps/android/app/src/main/java/chat/simplex/app/model/SimpleXAPI.kt b/apps/android/app/src/main/java/chat/simplex/app/model/SimpleXAPI.kt
index a0f1c5cf88..e3e79b28bb 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/model/SimpleXAPI.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/model/SimpleXAPI.kt
@@ -2410,14 +2410,16 @@ data class FullChatPreferences(
   val timedMessages: TimedMessagesPreference,
   val fullDelete: SimpleChatPreference,
   val voice: SimpleChatPreference,
+  val calls: SimpleChatPreference,
 ) {
-  fun toPreferences(): ChatPreferences = ChatPreferences(timedMessages = timedMessages, fullDelete = fullDelete, voice = voice)
+  fun toPreferences(): ChatPreferences = ChatPreferences(timedMessages = timedMessages, fullDelete = fullDelete, voice = voice, calls = calls)
 
   companion object {
     val sampleData = FullChatPreferences(
       timedMessages = TimedMessagesPreference(allow = FeatureAllowed.NO),
       fullDelete = SimpleChatPreference(allow = FeatureAllowed.NO),
-      voice = SimpleChatPreference(allow = FeatureAllowed.YES)
+      voice = SimpleChatPreference(allow = FeatureAllowed.YES),
+      calls = SimpleChatPreference(allow = FeatureAllowed.YES),
     )
   }
 }
@@ -2427,19 +2429,22 @@ data class ChatPreferences(
   val timedMessages: TimedMessagesPreference?,
   val fullDelete: SimpleChatPreference?,
   val voice: SimpleChatPreference?,
+  val calls: SimpleChatPreference?,
 ) {
   fun setAllowed(feature: ChatFeature, allowed: FeatureAllowed = FeatureAllowed.YES, param: Int? = null): ChatPreferences =
     when (feature) {
       ChatFeature.TimedMessages -> this.copy(timedMessages = TimedMessagesPreference(allow = allowed, ttl = param ?: this.timedMessages?.ttl))
       ChatFeature.FullDelete -> this.copy(fullDelete = SimpleChatPreference(allow = allowed))
       ChatFeature.Voice -> this.copy(voice = SimpleChatPreference(allow = allowed))
+      ChatFeature.Calls -> this.copy(calls = SimpleChatPreference(allow = allowed))
     }
 
   companion object {
     val sampleData = ChatPreferences(
       timedMessages = TimedMessagesPreference(allow = FeatureAllowed.NO),
       fullDelete = SimpleChatPreference(allow = FeatureAllowed.NO),
-      voice = SimpleChatPreference(allow = FeatureAllowed.YES)
+      voice = SimpleChatPreference(allow = FeatureAllowed.YES),
+      calls = SimpleChatPreference(allow = FeatureAllowed.YES),
     )
   }
 }
@@ -2511,11 +2516,13 @@ data class ContactUserPreferences(
   val timedMessages: ContactUserPreferenceTimed,
   val fullDelete: ContactUserPreference,
   val voice: ContactUserPreference,
+  val calls: ContactUserPreference,
 ) {
   fun toPreferences(): ChatPreferences = ChatPreferences(
     timedMessages = timedMessages.userPreference.pref,
     fullDelete = fullDelete.userPreference.pref,
-    voice = voice.userPreference.pref
+    voice = voice.userPreference.pref,
+    calls = calls.userPreference.pref
   )
 
   companion object {
@@ -2534,7 +2541,12 @@ data class ContactUserPreferences(
         enabled = FeatureEnabled(forUser = true, forContact = true),
         userPreference = ContactUserPref.User(preference = SimpleChatPreference(allow = FeatureAllowed.YES)),
         contactPreference = SimpleChatPreference(allow = FeatureAllowed.YES)
-      )
+      ),
+      calls = ContactUserPreference(
+        enabled = FeatureEnabled(forUser = true, forContact = true),
+        userPreference = ContactUserPref.User(preference = SimpleChatPreference(allow = FeatureAllowed.YES)),
+        contactPreference = SimpleChatPreference(allow = FeatureAllowed.YES)
+      ),
     )
   }
 }
@@ -2620,7 +2632,8 @@ interface Feature {
 enum class ChatFeature: Feature {
   @SerialName("timedMessages") TimedMessages,
   @SerialName("fullDelete") FullDelete,
-  @SerialName("voice") Voice;
+  @SerialName("voice") Voice,
+  @SerialName("calls") Calls;
 
   val asymmetric: Boolean get() = when (this) {
     TimedMessages -> false
@@ -2637,6 +2650,7 @@ enum class ChatFeature: Feature {
       TimedMessages -> generalGetString(R.string.timed_messages)
       FullDelete -> generalGetString(R.string.full_deletion)
       Voice -> generalGetString(R.string.voice_messages)
+      Calls -> generalGetString(R.string.audio_video_calls)
     }
 
   val icon: ImageVector
@@ -2644,6 +2658,7 @@ enum class ChatFeature: Feature {
       TimedMessages -> Icons.Outlined.Timer
       FullDelete -> Icons.Outlined.DeleteForever
       Voice -> Icons.Outlined.KeyboardVoice
+      Calls -> Icons.Outlined.Phone
     }
 
   override val iconFilled: ImageVector
@@ -2651,6 +2666,7 @@ enum class ChatFeature: Feature {
       TimedMessages -> Icons.Filled.Timer
       FullDelete -> Icons.Filled.DeleteForever
       Voice -> Icons.Filled.KeyboardVoice
+      Calls -> Icons.Filled.Phone
     }
 
   fun allowDescription(allowed: FeatureAllowed): String =
@@ -2670,6 +2686,11 @@ enum class ChatFeature: Feature {
         FeatureAllowed.YES -> generalGetString(R.string.allow_voice_messages_only_if)
         FeatureAllowed.NO -> generalGetString(R.string.prohibit_sending_voice_messages)
       }
+      Calls -> when (allowed) {
+        FeatureAllowed.ALWAYS -> generalGetString(R.string.allow_your_contacts_to_call)
+        FeatureAllowed.YES -> generalGetString(R.string.allow_calls_only_if)
+        FeatureAllowed.NO -> generalGetString(R.string.prohibit_calls)
+      }
     }
 
   fun enabledDescription(enabled: FeatureEnabled): String =
@@ -2692,7 +2713,13 @@ enum class ChatFeature: Feature {
         enabled.forContact -> generalGetString(R.string.only_your_contact_can_send_voice)
         else -> generalGetString(R.string.voice_prohibited_in_this_chat)
       }
-  }
+      Calls -> when {
+        enabled.forUser && enabled.forContact -> generalGetString(R.string.both_you_and_your_contact_can_make_calls)
+        enabled.forUser -> generalGetString(R.string.only_you_can_make_calls)
+        enabled.forContact -> generalGetString(R.string.only_your_contact_can_make_calls)
+        else -> generalGetString(R.string.calls_prohibited_with_this_contact)
+      }
+    }
 }
 
 @Serializable
@@ -2805,14 +2832,16 @@ data class ContactFeaturesAllowed(
   val timedMessagesAllowed: Boolean,
   val timedMessagesTTL: Int?,
   val fullDelete: ContactFeatureAllowed,
-  val voice: ContactFeatureAllowed
+  val voice: ContactFeatureAllowed,
+  val calls: ContactFeatureAllowed,
 ) {
   companion object {
     val sampleData = ContactFeaturesAllowed(
       timedMessagesAllowed = false,
       timedMessagesTTL = null,
       fullDelete = ContactFeatureAllowed.UserDefault(FeatureAllowed.NO),
-      voice = ContactFeatureAllowed.UserDefault(FeatureAllowed.YES)
+      voice = ContactFeatureAllowed.UserDefault(FeatureAllowed.YES),
+      calls = ContactFeatureAllowed.UserDefault(FeatureAllowed.YES),
     )
   }
 }
@@ -2824,7 +2853,8 @@ fun contactUserPrefsToFeaturesAllowed(contactUserPreferences: ContactUserPrefere
     timedMessagesAllowed = allow == FeatureAllowed.YES || allow == FeatureAllowed.ALWAYS,
     timedMessagesTTL = pref.pref.ttl,
     fullDelete = contactUserPrefToFeatureAllowed(contactUserPreferences.fullDelete),
-    voice = contactUserPrefToFeatureAllowed(contactUserPreferences.voice)
+    voice = contactUserPrefToFeatureAllowed(contactUserPreferences.voice),
+    calls = contactUserPrefToFeatureAllowed(contactUserPreferences.calls),
   )
 }
 
@@ -2842,7 +2872,8 @@ fun contactFeaturesAllowedToPrefs(contactFeaturesAllowed: ContactFeaturesAllowed
   ChatPreferences(
     timedMessages = TimedMessagesPreference(if (contactFeaturesAllowed.timedMessagesAllowed) FeatureAllowed.YES else FeatureAllowed.NO, contactFeaturesAllowed.timedMessagesTTL),
     fullDelete = contactFeatureAllowedToPref(contactFeaturesAllowed.fullDelete),
-    voice = contactFeatureAllowedToPref(contactFeaturesAllowed.voice)
+    voice = contactFeatureAllowedToPref(contactFeaturesAllowed.voice),
+    calls = contactFeatureAllowedToPref(contactFeaturesAllowed.calls),
   )
 
 fun contactFeatureAllowedToPref(contactFeatureAllowed: ContactFeatureAllowed): SimpleChatPreference? =
diff --git a/apps/android/app/src/main/java/chat/simplex/app/views/chat/ChatView.kt b/apps/android/app/src/main/java/chat/simplex/app/views/chat/ChatView.kt
index 121c5a6cd3..ef60e219f6 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/views/chat/ChatView.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/views/chat/ChatView.kt
@@ -398,7 +398,7 @@ fun ChatInfoToolbar(
     })
   }
 
-  if (chat.chatInfo is ChatInfo.Direct) {
+  if (chat.chatInfo is ChatInfo.Direct && chat.chatInfo.contact.allowsFeature(ChatFeature.Calls)) {
     barButtons.add {
       IconButton({
         showMenu = false
diff --git a/apps/android/app/src/main/java/chat/simplex/app/views/chat/ContactPreferences.kt b/apps/android/app/src/main/java/chat/simplex/app/views/chat/ContactPreferences.kt
index 75bec92bf8..84c9b23362 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/views/chat/ContactPreferences.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/views/chat/ContactPreferences.kt
@@ -104,6 +104,11 @@ private fun ContactPreferencesLayout(
       applyPrefs(featuresAllowed.copy(voice = it))
     }
     SectionSpacer()
+    val allowCalls: MutableState<ContactFeatureAllowed> = remember(featuresAllowed) { mutableStateOf(featuresAllowed.calls) }
+    FeatureSection(ChatFeature.Calls, user.fullPreferences.calls.allow, contact.mergedPreferences.calls, allowCalls) {
+      applyPrefs(featuresAllowed.copy(calls = it))
+    }
+    SectionSpacer()
     ResetSaveButtons(
       reset = reset,
       save = savePrefs,
@@ -138,6 +143,7 @@ private fun FeatureSection(
         ContactFeatureAllowed.values(userDefault).map { it to it.text },
         allowFeature,
         icon = null,
+        enabled = remember { mutableStateOf(feature != ChatFeature.Calls) },
         onSelected = onSelected
       )
     }
@@ -147,7 +153,7 @@ private fun FeatureSection(
       pref.contactPreference.allow.text
     )
   }
-  SectionTextFooter(feature.enabledDescription(enabled))
+  SectionTextFooter(feature.enabledDescription(enabled) + (if (feature == ChatFeature.Calls) generalGetString(R.string.available_in_v51) else ""))
 }
 
 @Composable
diff --git a/apps/android/app/src/main/java/chat/simplex/app/views/usersettings/Preferences.kt b/apps/android/app/src/main/java/chat/simplex/app/views/usersettings/Preferences.kt
index 113e454b1f..e5de1edac0 100644
--- a/apps/android/app/src/main/java/chat/simplex/app/views/usersettings/Preferences.kt
+++ b/apps/android/app/src/main/java/chat/simplex/app/views/usersettings/Preferences.kt
@@ -80,6 +80,11 @@ private fun PreferencesLayout(
       applyPrefs(preferences.copy(voice = SimpleChatPreference(allow = it)))
     }
     SectionSpacer()
+    val allowCalls = remember(preferences) { mutableStateOf(preferences.calls.allow) }
+    FeatureSection(ChatFeature.Calls, allowCalls) {
+      applyPrefs(preferences.copy(calls = SimpleChatPreference(allow = it)))
+    }
+    SectionSpacer()
     ResetSaveButtons(
       reset = reset,
       save = savePrefs,
@@ -97,11 +102,12 @@ private fun FeatureSection(feature: ChatFeature, allowFeature: State<FeatureAllo
         FeatureAllowed.values().map { it to it.text },
         allowFeature,
         icon = feature.icon,
-        onSelected = onSelected
+        enabled = remember { mutableStateOf(feature != ChatFeature.Calls) },
+        onSelected = onSelected,
       )
     }
   }
-  SectionTextFooter(feature.allowDescription(allowFeature.value))
+  SectionTextFooter(feature.allowDescription(allowFeature.value) + (if (feature == ChatFeature.Calls) generalGetString(R.string.available_in_v51) else ""))
 }
 
 @Composable
diff --git a/apps/android/app/src/main/res/values/strings.xml b/apps/android/app/src/main/res/values/strings.xml
index e340191e78..f703b12af0 100644
--- a/apps/android/app/src/main/res/values/strings.xml
+++ b/apps/android/app/src/main/res/values/strings.xml
@@ -1176,6 +1176,8 @@
   <string name="direct_messages">Direct messages</string>
   <string name="full_deletion">Delete for everyone</string>
   <string name="voice_messages">Voice messages</string>
+  <string name="audio_video_calls">Audio/video calls</string>
+  <string name="available_in_v51">\nAvailable in v5.1</string>
   <string name="feature_enabled">enabled</string>
   <string name="feature_enabled_for_you">enabled for you</string>
   <string name="feature_enabled_for_contact">enabled for contact</string>
@@ -1192,6 +1194,9 @@
   <string name="allow_your_contacts_to_send_voice_messages">Allow your contacts to send voice messages.</string>
   <string name="allow_voice_messages_only_if">Allow voice messages only if your contact allows them.</string>
   <string name="prohibit_sending_voice_messages">Prohibit sending voice messages.</string>
+  <string name="allow_your_contacts_to_call">Allow your contacts to call you.</string>
+  <string name="allow_calls_only_if">Allow calls only if your contact allows them.</string>
+  <string name="prohibit_calls">Prohibit audio/video calls.</string>
   <string name="both_you_and_your_contact_can_send_disappearing">Both you and your contact can send disappearing messages.</string>
   <string name="only_you_can_send_disappearing">Only you can send disappearing messages.</string>
   <string name="only_your_contact_can_send_disappearing">Only your contact can send disappearing messages.</string>
@@ -1204,6 +1209,10 @@
   <string name="only_you_can_send_voice">Only you can send voice messages.</string>
   <string name="only_your_contact_can_send_voice">Only your contact can send voice messages.</string>
   <string name="voice_prohibited_in_this_chat">Voice messages are prohibited in this chat.</string>
+  <string name="both_you_and_your_contact_can_make_calls">Both you and your contact can make calls.</string>
+  <string name="only_you_can_make_calls">Only you can make calls.</string>
+  <string name="only_your_contact_can_make_calls">Only your contact can make calls.</string>
+  <string name="calls_prohibited_with_this_contact">Audio/video calls are prohibited.</string>
   <string name="allow_to_send_disappearing">Allow to send disappearing messages.</string>
   <string name="prohibit_sending_disappearing">Prohibit sending disappearing messages.</string>
   <string name="allow_direct_messages">Allow sending direct messages to members.</string>
diff --git a/apps/ios/Shared/Views/Chat/ChatView.swift b/apps/ios/Shared/Views/Chat/ChatView.swift
index 59783f25fa..9c16badf6f 100644
--- a/apps/ios/Shared/Views/Chat/ChatView.swift
+++ b/apps/ios/Shared/Views/Chat/ChatView.swift
@@ -140,12 +140,16 @@ struct ChatView: View {
                 switch cInfo {
                 case let .direct(contact):
                     HStack {
-                        callButton(contact, .audio, imageName: "phone")
+                        if contact.allowsFeature(.calls) {
+                            callButton(contact, .audio, imageName: "phone")
+                        }
                         Menu {
-                            Button {
-                                CallController.shared.startCall(contact, .video)
-                            } label: {
-                                Label("Video call", systemImage: "video")
+                            if contact.allowsFeature(.calls) {
+                                Button {
+                                    CallController.shared.startCall(contact, .video)
+                                } label: {
+                                    Label("Video call", systemImage: "video")
+                                }
                             }
                             searchButton()
                             toggleNtfsButton(chat)
diff --git a/apps/ios/Shared/Views/Chat/ContactPreferencesView.swift b/apps/ios/Shared/Views/Chat/ContactPreferencesView.swift
index af16d221e2..d0306c4cd4 100644
--- a/apps/ios/Shared/Views/Chat/ContactPreferencesView.swift
+++ b/apps/ios/Shared/Views/Chat/ContactPreferencesView.swift
@@ -25,6 +25,7 @@ struct ContactPreferencesView: View {
                 timedMessagesFeatureSection()
                 featureSection(.fullDelete, user.fullPreferences.fullDelete.allow, contact.mergedPreferences.fullDelete, $featuresAllowed.fullDelete)
                 featureSection(.voice, user.fullPreferences.voice.allow, contact.mergedPreferences.voice, $featuresAllowed.voice)
+                featureSection(.calls, user.fullPreferences.calls.allow, contact.mergedPreferences.calls, $featuresAllowed.calls).disabled(true)
 
                 Section {
                     Button("Reset") { featuresAllowed = currentFeaturesAllowed }
@@ -106,7 +107,7 @@ struct ContactPreferencesView: View {
     }
 
     private func featureFooter(_ feature: ChatFeature, _ enabled: FeatureEnabled) -> some View {
-        Text(feature.enabledDescription(enabled))
+        (Text(feature.enabledDescription(enabled)) + (feature == .calls ? Text("\nAvailable in v5.1").bold() : Text("")))
         .frame(height: 36, alignment: .topLeading)
     }
 
diff --git a/apps/ios/Shared/Views/UserSettings/PreferencesView.swift b/apps/ios/Shared/Views/UserSettings/PreferencesView.swift
index fbce7193fa..4869c3bde3 100644
--- a/apps/ios/Shared/Views/UserSettings/PreferencesView.swift
+++ b/apps/ios/Shared/Views/UserSettings/PreferencesView.swift
@@ -21,6 +21,7 @@ struct PreferencesView: View {
                 timedMessagesFeatureSection($preferences.timedMessages.allow)
                 featureSection(.fullDelete, $preferences.fullDelete.allow)
                 featureSection(.voice, $preferences.voice.allow)
+                featureSection(.calls, $preferences.calls.allow).disabled(true)
 
                 Section {
                     Button("Reset") { preferences = currentPreferences }
@@ -60,7 +61,7 @@ struct PreferencesView: View {
     }
 
     private func featureFooter(_ feature: ChatFeature, _ allowFeature: Binding<FeatureAllowed>) -> some View {
-        Text(feature.allowDescription(allowFeature.wrappedValue))
+        (Text(feature.allowDescription(allowFeature.wrappedValue)) + (feature == .calls ? Text("\nAvailable in v5.1").bold() : Text("")))
             .frame(height: 36, alignment: .topLeading)
     }
 
diff --git a/apps/ios/SimpleXChat/ChatTypes.swift b/apps/ios/SimpleXChat/ChatTypes.swift
index 516d7ec8fd..a89ef26fed 100644
--- a/apps/ios/SimpleXChat/ChatTypes.swift
+++ b/apps/ios/SimpleXChat/ChatTypes.swift
@@ -162,17 +162,20 @@ public struct FullPreferences: Decodable, Equatable {
     public var timedMessages: TimedMessagesPreference
     public var fullDelete: SimplePreference
     public var voice: SimplePreference
+    public var calls: SimplePreference
 
-    public init(timedMessages: TimedMessagesPreference, fullDelete: SimplePreference, voice: SimplePreference) {
+    public init(timedMessages: TimedMessagesPreference, fullDelete: SimplePreference, voice: SimplePreference, calls: SimplePreference) {
         self.timedMessages = timedMessages
         self.fullDelete = fullDelete
         self.voice = voice
+        self.calls = calls
     }
 
     public static let sampleData = FullPreferences(
         timedMessages:  TimedMessagesPreference(allow: .no),
         fullDelete: SimplePreference(allow: .no),
-        voice: SimplePreference(allow: .yes)
+        voice: SimplePreference(allow: .yes),
+        calls: SimplePreference(allow: .yes)
     )
 }
 
@@ -180,18 +183,21 @@ public struct Preferences: Codable {
     public var timedMessages: TimedMessagesPreference?
     public var fullDelete: SimplePreference?
     public var voice: SimplePreference?
+    public var calls: SimplePreference?
 
-    public init(timedMessages: TimedMessagesPreference?, fullDelete: SimplePreference?, voice: SimplePreference?) {
+    public init(timedMessages: TimedMessagesPreference?, fullDelete: SimplePreference?, voice: SimplePreference?, calls: SimplePreference?) {
         self.timedMessages = timedMessages
         self.fullDelete = fullDelete
         self.voice = voice
+        self.calls = calls
     }
 
-    func copy(timedMessages: TimedMessagesPreference? = nil, fullDelete: SimplePreference? = nil, voice: SimplePreference? = nil) -> Preferences {
+    func copy(timedMessages: TimedMessagesPreference? = nil, fullDelete: SimplePreference? = nil, voice: SimplePreference? = nil, calls: SimplePreference? = nil) -> Preferences {
         Preferences(
             timedMessages: timedMessages ?? self.timedMessages,
             fullDelete: fullDelete ?? self.fullDelete,
-            voice: voice ?? self.voice
+            voice: voice ?? self.voice,
+            calls: calls ?? self.calls
         )
     }
 
@@ -200,13 +206,15 @@ public struct Preferences: Codable {
         case .timedMessages: return copy(timedMessages: TimedMessagesPreference(allow: allowed, ttl: param ?? timedMessages?.ttl))
         case .fullDelete: return copy(fullDelete: SimplePreference(allow: allowed))
         case .voice: return copy(voice: SimplePreference(allow: allowed))
+        case .calls: return copy(calls: SimplePreference(allow: allowed))
         }
     }
 
     public static let sampleData = Preferences(
         timedMessages: TimedMessagesPreference(allow: .no),
         fullDelete: SimplePreference(allow: .no),
-        voice: SimplePreference(allow: .yes)
+        voice: SimplePreference(allow: .yes),
+        calls: SimplePreference(allow: .yes)
     )
 }
 
@@ -214,7 +222,8 @@ public func fullPreferencesToPreferences(_ fullPreferences: FullPreferences) ->
     Preferences(
         timedMessages: fullPreferences.timedMessages,
         fullDelete: fullPreferences.fullDelete,
-        voice: fullPreferences.voice
+        voice: fullPreferences.voice,
+        calls: fullPreferences.calls
     )
 }
 
@@ -222,7 +231,8 @@ public func contactUserPreferencesToPreferences(_ contactUserPreferences: Contac
     Preferences(
         timedMessages: contactUserPreferences.timedMessages.userPreference.preference,
         fullDelete: contactUserPreferences.fullDelete.userPreference.preference,
-        voice: contactUserPreferences.voice.userPreference.preference
+        voice: contactUserPreferences.voice.userPreference.preference,
+        calls: contactUserPreferences.calls.userPreference.preference
     )
 }
 
@@ -308,15 +318,18 @@ public struct ContactUserPreferences: Decodable {
     public var timedMessages: ContactUserPreference<TimedMessagesPreference>
     public var fullDelete: ContactUserPreference<SimplePreference>
     public var voice: ContactUserPreference<SimplePreference>
+    public var calls: ContactUserPreference<SimplePreference>
 
     public init(
         timedMessages: ContactUserPreference<TimedMessagesPreference>,
         fullDelete: ContactUserPreference<SimplePreference>,
-        voice: ContactUserPreference<SimplePreference>
+        voice: ContactUserPreference<SimplePreference>,
+        calls: ContactUserPreference<SimplePreference>
     ) {
         self.timedMessages = timedMessages
         self.fullDelete = fullDelete
         self.voice = voice
+        self.calls = calls
     }
 
     public static let sampleData = ContactUserPreferences(
@@ -334,6 +347,11 @@ public struct ContactUserPreferences: Decodable {
             enabled: FeatureEnabled(forUser: true, forContact: true),
             userPreference: ContactUserPref<SimplePreference>.user(preference: SimplePreference(allow: .yes)),
             contactPreference: SimplePreference(allow: .yes)
+        ),
+        calls: ContactUserPreference<SimplePreference>(
+            enabled: FeatureEnabled(forUser: true, forContact: true),
+            userPreference: ContactUserPref<SimplePreference>.user(preference: SimplePreference(allow: .yes)),
+            contactPreference: SimplePreference(allow: .yes)
         )
     )
 }
@@ -405,6 +423,7 @@ public enum ChatFeature: String, Decodable, Feature {
     case timedMessages
     case fullDelete
     case voice
+    case calls
 
     public var values: [ChatFeature] { [.fullDelete, .voice] }
 
@@ -429,6 +448,7 @@ public enum ChatFeature: String, Decodable, Feature {
         case .timedMessages: return NSLocalizedString("Disappearing messages", comment: "chat feature")
         case .fullDelete: return NSLocalizedString("Delete for everyone", comment: "chat feature")
         case .voice: return NSLocalizedString("Voice messages", comment: "chat feature")
+        case .calls: return NSLocalizedString("Audio/video calls", comment: "chat feature")
         }
     }
 
@@ -437,6 +457,7 @@ public enum ChatFeature: String, Decodable, Feature {
         case .timedMessages: return "stopwatch"
         case .fullDelete: return "trash.slash"
         case .voice: return "mic"
+        case .calls: return "phone"
         }
     }
 
@@ -445,6 +466,7 @@ public enum ChatFeature: String, Decodable, Feature {
         case .timedMessages: return "stopwatch.fill"
         case .fullDelete: return "trash.slash.fill"
         case .voice: return "mic.fill"
+        case .calls: return "phone.fill"
         }
     }
 
@@ -475,6 +497,12 @@ public enum ChatFeature: String, Decodable, Feature {
             case .yes: return "Allow voice messages only if your contact allows them."
             case .no: return "Prohibit sending voice messages."
             }
+        case .calls:
+            switch allowed {
+            case .always: return "Allow your contacts to call you."
+            case .yes: return "Allow calls only if your contact allows them."
+            case .no: return "Prohibit audio/video calls."
+            }
         }
     }
 
@@ -504,6 +532,14 @@ public enum ChatFeature: String, Decodable, Feature {
                     : enabled.forContact
                     ? "Only your contact can send voice messages."
                     : "Voice messages are prohibited in this chat."
+        case .calls:
+            return enabled.forUser && enabled.forContact
+                    ? "Both you and your contact can make calls."
+                    : enabled.forUser
+                    ? "Only you can make calls."
+                    : enabled.forContact
+                    ? "Only your contact can make calls."
+                    : "Audio/video calls are prohibited."
         }
     }
 }
@@ -646,19 +682,22 @@ public struct ContactFeaturesAllowed: Equatable {
     public var timedMessagesTTL: Int?
     public var fullDelete: ContactFeatureAllowed
     public var voice: ContactFeatureAllowed
+    public var calls: ContactFeatureAllowed
 
-    public init(timedMessagesAllowed: Bool, timedMessagesTTL: Int?, fullDelete: ContactFeatureAllowed, voice: ContactFeatureAllowed) {
+    public init(timedMessagesAllowed: Bool, timedMessagesTTL: Int?, fullDelete: ContactFeatureAllowed, voice: ContactFeatureAllowed, calls: ContactFeatureAllowed) {
         self.timedMessagesAllowed = timedMessagesAllowed
         self.timedMessagesTTL = timedMessagesTTL
         self.fullDelete = fullDelete
         self.voice = voice
+        self.calls = calls
     }
 
     public static let sampleData = ContactFeaturesAllowed(
         timedMessagesAllowed: false,
         timedMessagesTTL: nil,
         fullDelete: ContactFeatureAllowed.userDefault(.no),
-        voice: ContactFeatureAllowed.userDefault(.yes)
+        voice: ContactFeatureAllowed.userDefault(.yes),
+        calls: ContactFeatureAllowed.userDefault(.yes)
     )
 }
 
@@ -669,7 +708,8 @@ public func contactUserPrefsToFeaturesAllowed(_ contactUserPreferences: ContactU
         timedMessagesAllowed: allow == .yes || allow == .always,
         timedMessagesTTL: pref.preference.ttl,
         fullDelete: contactUserPrefToFeatureAllowed(contactUserPreferences.fullDelete),
-        voice: contactUserPrefToFeatureAllowed(contactUserPreferences.voice)
+        voice: contactUserPrefToFeatureAllowed(contactUserPreferences.voice),
+        calls: contactUserPrefToFeatureAllowed(contactUserPreferences.calls)
     )
 }
 
@@ -689,7 +729,8 @@ public func contactFeaturesAllowedToPrefs(_ contactFeaturesAllowed: ContactFeatu
     Preferences(
         timedMessages: TimedMessagesPreference(allow: contactFeaturesAllowed.timedMessagesAllowed ? .yes : .no, ttl: contactFeaturesAllowed.timedMessagesTTL),
         fullDelete: contactFeatureAllowedToPref(contactFeaturesAllowed.fullDelete),
-        voice: contactFeatureAllowedToPref(contactFeaturesAllowed.voice)
+        voice: contactFeatureAllowedToPref(contactFeaturesAllowed.voice),
+        calls: contactFeatureAllowedToPref(contactFeaturesAllowed.calls)
     )
 }
 
@@ -977,6 +1018,7 @@ public enum ChatInfo: Identifiable, Decodable, NamedChat {
             case .timedMessages: return cups.timedMessages.enabled.forUser
             case .fullDelete: return cups.fullDelete.enabled.forUser
             case .voice: return cups.voice.enabled.forUser
+            case .calls: return cups.calls.enabled.forUser
             }
         case let .group(groupInfo):
             let prefs = groupInfo.fullGroupPreferences
@@ -984,6 +1026,7 @@ public enum ChatInfo: Identifiable, Decodable, NamedChat {
             case .timedMessages: return prefs.timedMessages.on
             case .fullDelete: return prefs.fullDelete.on
             case .voice: return prefs.voice.on
+            case .calls: return false
             }
         default: return false
         }
@@ -1137,6 +1180,7 @@ public struct Contact: Identifiable, Decodable, NamedChat {
         case .timedMessages: return mergedPreferences.timedMessages.contactPreference.allow != .no
         case .fullDelete: return mergedPreferences.fullDelete.contactPreference.allow != .no
         case .voice: return mergedPreferences.voice.contactPreference.allow != .no
+        case .calls: return mergedPreferences.calls.contactPreference.allow != .no
         }
     }
 
@@ -1145,6 +1189,7 @@ public struct Contact: Identifiable, Decodable, NamedChat {
         case .timedMessages: return mergedPreferences.timedMessages.userPreference.preference.allow != .no
         case .fullDelete: return mergedPreferences.fullDelete.userPreference.preference.allow != .no
         case .voice: return mergedPreferences.voice.userPreference.preference.allow != .no
+        case .calls: return mergedPreferences.calls.userPreference.preference.allow != .no
         }
     }