Sometimes it is necessary to respond to a call with a hangup cause and code. For extra fun, some phones will display the hangup cause on the display, which can be a source of amusement. For instance, for a while Kazoo would return a "403 Insert Coin" if the account was out of money.


     ,"message":"User Busy"

If you define media, the media will be played to the user before hanging up the call.

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