get PTTDefault Audio Latency
Call this method to check the default audio latency for PTT VoIP calls (DEFAULT or AAUDIO) Note that: OPENSLES is Deprecated and should not be used, otherwise the audio Latency will be forced toDEFAULT
Return
The default audio latency for PTT VoIP calls (See : PTTAudioLatency)
Parameters
context
Context:The application context