Method 

Description 

answerCall 

Accepts an incoming voice call. 

getVoiceCallStatus 

Checks status of the voice call. 

hangCall 

Hang up an established call or during incoming rings. 

ready 

Checks if the previous voice operation has executed successfully. 

retrieveCallingNumber 

Retrieves the calling number. 

voiceCall 

Makes a voice call to a specified number.