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// FREEBIE

Signal/src/ViewControllers/CallViewController.swift

@@ -89,7 +89,7 @@ class CallViewController: UIViewController, CallObserver, CallServiceObserver, R
     // MARK: Audio Source
 
     var hasAlternateAudioSources: Bool {
-        Logger.info("\(TAG) available audio routes count: \(allAudioSources.count)")
+        Logger.info("\(TAG) available audio sources: \(allAudioSources)")
         // internal mic and speakerphone will be the first two, any more than one indicates e.g. an attached bluetooth device.
 
         // TODO is this sufficient? Are their devices w/ bluetooth but no external speaker? e.g. ipod?

Signal/src/call/CallAudioService.swift

@@ -182,13 +182,18 @@ struct AudioSource: Hashable {
             setAudioSession(category: AVAudioSessionCategorySoloAmbient,
                             mode: AVAudioSessionModeDefault)
         } else if call.hasLocalVideo {
-            // Don't allow bluetooth for local video if speakerphone has been explicitly chosen by the user.
+            // Apple Docs say that setting mode to AVAudioSessionModeVideoChat has the
-            let options: AVAudioSessionCategoryOptions = call.isSpeakerphoneEnabled ? [.defaultToSpeaker] : [.defaultToSpeaker, .allowBluetooth]
+            // side effect of setting options: .allowBluetooth, when I remove the (seemingly unnecessary)
-
+            // option, and inspect AVAudioSession.sharedInstance.categoryOptions == 0. And availableInputs
+            // does not include my linked bluetooth device
             setAudioSession(category: AVAudioSessionCategoryPlayAndRecord,
                             mode: AVAudioSessionModeVideoChat,
-                            options: options)
+                            options: [.allowBluetooth])
         } else {
+            // Apple Docs say that setting mode to AVAudioSessionModeVoiceChat has the
+            // side effect of setting options: .allowBluetooth, when I remove the (seemingly unnecessary)
+            // option, and inspect AVAudioSession.sharedInstance.categoryOptions == 0. And availableInputs
+            // does not include my linked bluetooth device
             setAudioSession(category: AVAudioSessionCategoryPlayAndRecord,
                             mode: AVAudioSessionModeVoiceChat,
                             options: [.allowBluetooth])