Please let us know whether any standards are being followed by New PushToTalk Framework. Existing PushKit Framework will still exist for voip PTT calls [On Devices running 15.x OS and below]. How does our application behave with respect to PushKit Framework when we compile/link against 16.x SDK and entitlements [ unrestricted.voip, unrestricted.voip-ptt ] . Our application minimum deployment target is 11.0 3. Is there a sample code which demonstrates the usage of API. Appreciate if you can send us a link/copy of the sample project 4. channelUUID - Is there any additional article/document on this? 5. As per document, we can be active on one single channel at any given time, Is it possible to just join multiple channels and not be active? 6. joinTheChannel - Apart from getting us a new Push Token , what exactly does this API do? 6 . (PTPushResult *)incomingPushResultForChannelManager:(PTChannelManager *)channelManager channelUUID:(NSUUID *)channelUUID pushPayload:(NSDictionary<NSString *,id> *)pushPayload; channelUUID part of incomingPush API refers to self channelUUID / remoteChannelUUID