Twilio client voice call speaker ON/OFF issue - ios

Question

I am using Twilio client voice call service for calling.
Here I am facing issue in spearke ON/OFF feature.I am able to Mute/Unmute call but not able to turn On/OFF speaker. I have a same instance for both functionality. I have also checked their demo project basic phone in that this speaker ON/OFF is working and I am doing same thing in my project bur not able to do the same.
Here is my code:
if(isSpeaker == NO)
{
isSpeaker=YES;
[self.phone setSpeakerEnabled:YES];
}
else{
isSpeaker=NO;
[self.phone setSpeakerEnabled:NO];
}
self.phone is the sharedInstance of BasicPhone (their call manager class) and I am testing application in > iOS 9 both demo and my project.

Answer 1

I've used this code on iOS to successfully enable/disable speakerphone. It doesn't use the Twilio device, and is somewhat specific to React Native, but the core of each function should work:
RCT_EXPORT_METHOD(setSpeakerPhoneOn) {
AVAudioSession *session = [AVAudioSession sharedInstance];
NSError *error;
[session overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker error:&error];
}
RCT_EXPORT_METHOD(setSpeakerPhoneOff) {
AVAudioSession *session = [AVAudioSession sharedInstance];
NSError *error;
[session overrideOutputAudioPort:AVAudioSessionPortOverrideNone error:&error];
}

Answer 2

Swift 5, use below code snippet
// Change the audio route after connecting to a Room.
func moveToMic() {
audioDevice.block = {
DefaultAudioDevice.DefaultAVAudioSessionConfigurationBlock()
do {
try AVAudioSession.sharedInstance().setMode(.voiceChat)
try AVAudioSession.sharedInstance().overrideOutputAudioPort(.none)
} catch {
print(error)
}
}
audioDevice.block();
}
func moveToSpeaker() {
audioDevice.block = {
DefaultAudioDevice.DefaultAVAudioSessionConfigurationBlock()
do {
try AVAudioSession.sharedInstance().setMode(.videoChat)
try AVAudioSession.sharedInstance().overrideOutputAudioPort(.none)
} catch {
print(error)
}
}
audioDevice.block();
}