[Telepathy] Gabble DTMF

[Jack Bates]

Hi - I'm interested in adding TP_IFACE_CHANNEL_INTERFACE_DTMF to Gabble

I think this would let me use the dialpad in Empathy when I call
Asterisk with Jingle?

I think Jingle supports DTMF according to RFC 4733, RTP Payload for DTMF
Digits, Telephony Tones, and Telephony Signals,
http://datatracker.ietf.org/doc/rfc4733/

- which Farsight already implements?

So to implement TP_IFACE_CHANNEL_INTERFACE_DTMF, I could simply call
tp_svc_media_stream_handler_emit_start_telephony_event() and
tp_svc_media_stream_handler_emit_stop_telephony_event(), like the SIP
connection manager?

Has anyone already done any work on this? Would a patch be welcome?