Like JsSIP.Message, I need the ability to pass target; the string representing the destination, body; message content, contentType; could be anything, but I will be passing application/msml+xml and application/dtmf-relay, options; object with extraHeaders. Like with JsSIP.Message, you also should be able to support events such as succeeded and failed.
The body, string may be text such as:
If I am going to be sending DTMF, or:
If I am sending MSML.
I need the new code as a patch off the current git repository.