[Asterisk-Users] IConnectHere and DTMF

[Tilghman Lesher]

On Thursday, February 20, 2003, at 12:02 AM, James H. Cloos Jr. wrote:

> "John" == John Todd <jtodd at loligo.com> writes:
>
>> John> Whenever I send DTMF from PSTN -> 3640 -> * -> ATA,
>> John> I can see this message on the console:
>>
>> John> NOTICE[27662]: File rtp.c, Line 300 (ast_rtp_read):
>> John> Unknown RTP codec 19 received
>
> Intersting.  According to iana¹ codec 19 is reserved....
>
> Ah.  draft-ietf-avt-profile-new-12.txt says this about 19:
>
> diapn12> Payload type 19 was marked reserved because it had been
> diapn12> temporarily allocated in some draft revisions of this
> diapn12> document.
>
> but I can find no references to what said earlier revision allocated
> it to.

A quick search on groups.google.com for rtp+codec+19 turns up
"comfort noise" (which is now at 13).

-Tilghman