callread-only property of the
CallEventinterface returns a
TelephonyCallobject indicating the call from which the event originated.
sendTones()method of the
TelephonyInterface generates multiple DTMF tones, with a specified duration for each tone, and an optional delay before generation starts. The tones are sent to the currently active call.
startTone()method of the
TelephonyInterface begins generating the tone for the specified DTMF character. The tone is sent to the currently active call, and continues to sound until a corresponding call to