This API is available on Firefox OS for internal applications only.
Summary
The answerWaitingCall method is used to allow HFP devices to answer a pending incoming call on a CDMA network.
Note: In a GSM network the dialer observes call operations from RIL call state changes; however, in a CDMA network RIL call states do not change under some call operations, so HFP devices need this additional method to have the dialer to be informed of the operation.
Syntax
var request = instanceOfBluetoothAdapter.answerWaitingCall();
Returns
A DOMRequest object to handle the success or error of the operation.
Specification
Not part of any specification yet. It should be discussed as part of the W3C's System Applications Working Group.