# sip:decline The sip:decline action is used to reject an incoming call with a specific status and, optionally, a reason and SIP headers to include on the response. This action must be the first and only action returned in the JSON payload for an incoming call. The sip:decline action is a non-blocking action and the session ends immediately after the action is executed. ```json { "verb": "sip:decline", "status": 480, "reason": "Gone Fishing", "headers" : { "Retry-After": 1800 } } ``` You can use the following options in the `sip:decline` action: | option | description | required | | ------------- |-------------| -----| | status | a valid SIP status code in the range 4XX - 6XX | yes | | reason | a brief description | no (default: the well-known SIP reasons associated with the specified status code | | headers | SIP headers to include in the response | no