I believe that it should function as follows :

If rtp_liberal_dtmf=true, FS should accept all methods of DTMF transmission (In-band, RTP and SIP INFO), but it should respect the dtmf_type setting. If dtmf_type=none or dtmf_type=rfc2833, INFO should not be sent in Allow.

If rtp_liberal_dtmf=false, FS should accept only a method determined by the dtmf_type setting.

Thanks.

Adrian.

De : FreeSWITCH-users <freeswitch-users-bounces@lists.freeswitch.org> De la part de Brian West
Envoyé : jeudi 10 décembre 2020 22:07
À : FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>
Objet : Re: [Freeswitch-users] How to modify 'Allow:' in SIP header

You would need to patch sofia.c, look for NUTAG_APPL_METHOD, It would need a config option to toggle it. You could do that and issue a PR on github?

On Wed, Dec 9, 2020 at 7:42 AM Adrian Worutowicz <adrian.worutowicz@esifrance.net> wrote:

FS sends : [Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, PRACK, NOTIFY]

Is it possible to stop FS sending INFO ? If so, how ?

In advance thank you for any tips.

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