[Freeswitch-users] DTMF negotiation

[Alexey Sibyakin]

Yes, it's possible. Vanilla config has example.

Alex

On Fri, Mar 2, 2018 at 12:39 AM, kaiduan xie <kaiduanx at yahoo.ca> wrote:

> Alex,
>
> Thanks for the help.
>
> With <param name="dtmf-type" value="none"/> in sofia profile, the offer
> from FreeSwitch does not add telephone event support.
>
> With <action application="set" data="execute_on_media=start_dtmf_generate"/>,
> FreeSwitch always sends DTMF inband even the offer from FreeSwitch and
> answer both supports telephone event.
>
> What I want is DTMF negotiation as below,
>
> FreeSwitch always adds telephone event support in offer,
>
> 1. If answer supports telephone event, then FreeSwitch sends DTMF in
> rfc2833.
> 2. If answer does not support telephone event, then FreeSwitch sends DTMF
> inband.
>
> Is it possible?
>
> Thanks again.
>
> /Kaiduan
>
> On Thursday, March 1, 2018 3:22 AM, Alexey Sibyakin <alex at freeswitch.com>
> wrote:
>
>
> Hi,
>
> You need
> <action application="set" data="execute_on_media=start_dtmf_generate"/>
> in dialplan and probably
> <param name="dtmf-type" value="none"/>
> in sofia profile
>
> Alex
>
> On Thu, Mar 1, 2018 at 12:02 AM, kaiduan xie <kaiduanx at yahoo.ca> wrote:
>
> Hi,
>
> We are encountering the following DTMF issue,
>
> FreeSwitch adds telephone-event support in INVITE to SBC, SBC replies back
> without telephone-event support in 200.
>
> However FreeSwitch still sends out DTMF in RFC 2833 event.
>
> I think FreeSwitch should send out DTMF inband instead of 2833 event, what
> is the configuration for this?
>
> Many thanks for help,
>
> /Kaiduan
>
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> --
>
> Alex Sibyakin | Support Engineer
> FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
> <https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>
> Email: alex at freeswitch.com
> Website: https://www.FreeSWITCH.com <https://www.freeswitch.com/>
> Need commercial support? Contact sales at freeswitch.com for details.
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
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>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
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-- 

Alex Sibyakin | Support Engineer
FreeSWITCH Solutions | 17345 Civic Drive #2531 Brookfield, WI 53045
<https://maps.google.com/?q=17345+Civic+Drive+%232531+Brookfield,+WI+53045&entry=gmail&source=g>
Email: alex at freeswitch.com
Website: https://www.FreeSWITCH.com <https://www.freeswitch.com/>
Need commercial support? Contact sales at freeswitch.com for details.
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