Asynchronously invokes the <link linkend="gdbus-method-org-freedesktop-ModemManager1-Call.
Accept">Accept</link> D-Bus method on this. When the operation is finished,
callback will be invoked in the thread-default main loop of the thread you are calling this method from (see
push_thread_default). You can then call
call_accept.end to get the result of the operation.
See call_accept_sync for the synchronous, blocking version of this method.
| this | |
| cancellable |
A Cancellable or null. |
| callback |
A TaskReadyCallback to call when the request is satisfied or null. |
| user_data |
User data to pass to |