swift webrtc can not force audio to speaker

before ios16, my webrtc call work fine, but after upgrade to ios16, i can not hear anything, and can not talk to other. Here is my code:

func speakerOn() {
        audioQueue.async { [weak self] in
            guard let self = self else { return }
            
            self.rtcAudioSession.lockForConfiguration()
            do {
                try self.rtcAudioSession.setCategory(AVAudioSession.Category.playAndRecord.rawValue, with: [.mixWithOthers])
                try self.rtcAudioSession.setMode(AVAudioSession.Mode.voiceChat.rawValue)
                try self.rtcAudioSession.overrideOutputAudioPort(.speaker)
                try self.rtcAudioSession.setActive(true)
            } catch let error {
                debugPrint("Couldn't force audio to speaker: \(error)")
            }
            self.rtcAudioSession.unlockForConfiguration()
        }
    }

here is the problem i got:

"Couldn't force audio to speaker: Error Domain=NSOSStatusErrorDomain Code=1701737535 "Session activation failed" UserInfo={NSLocalizedDescription=Session activation failed}"