linphone 没有声音 导致主动挂断。
03-23 17:45:27.806 964 964 I Linphone: Call [0x968b4e60]: Media connectivity with "866375070001770" <sip:866375070001770@pbx.teruisa.com> is lost, call is going to be terminated
03-23 17:45:27.806 964 964 I Linphone: Terminate CallSession [0x95f4490c] which is currently in state [LinphoneCallStreamsRunning]
