When the app is open and the pushtotalk notification is sent to the app the app calls following functions func incomingPushResult(channelManager: PTChannelManager, channelUUID: UUID, pushPayload: [String : Any]) -> PTPushResult { func channelManager(_ channelManager: PTChannelManager, didActivate audioSession: AVAudioSession) { Once the app goes into background mode only pt 1 function is getting called and not pt 2 function. Could you pls clarify how to resolve this issue. Also i get error sometimes 2023-05-10 07:47:55.655278+0530 bhnonlineazan[674:48861] [connection] nw_read_request_report [C3] Receive failed with error "Socket is not connected"

Hello, we are unable to use the ios push to talk framework using cloud messaging. it says that Error: Invalid [apns-push-type] set for apns platform. IOS manual says that the push type to be set to pushtotalk. but thsi s not allowed in messaging().send(message) const message = { notification: { title: 'test' }, apns: { headers: { 'apns-push-type': 'pushtotalk', 'apns-topic': xxx.xxx.xxx.voip-ptt', 'apns-priority' : '10', 'apns-expiration' : '0' }, payload: { aps: { 'mutable-content': 1 } }, fcm_options: { } }, webpush: { headers: { } }, topic: topicval