OnMediaOpenTX

OnMediaOpenTX

Occurs when microphone is to be opened for sound recording. Called once for each established call i.e. session.

This event is not available on .NET CF and COM versions due to their technical limitations.

CallToken – the ID of call who is originating this audio event.

UserData – the user data associated with call. This data can be set using AcceptCall(AcceptCallEx for COM)/MakeCall(MakeCallEx for COM) last parameter.

Please be aware – this event is called very frequently. Poorly written handlers can consume too much CPU usage especially under the debugger.