[Freeswitch-users] Translating DTMF from RFC2833 to INFO

Ognjen Seslija oseslija at gmail.com
Thu Dec 3 00:43:28 PST 2009

Bear in mind that FS will accept both 2833 and INFO in any profile on an
inbound call. Param "dtmf-type" is valid only for outbound calls from the


On Thu, Dec 3, 2009 at 6:11 AM, Yehavi Bourvine
<yehavi.bourvine at gmail.com>wrote:

> Hello,
>   I have Polycom phones which send only RFC-2833 (or inband which I
> dislike) and they should go out to the PSTN via a Cisco gateway. The Cisco
> gateway has some bug and accepts only INFO.
> I did a few tests:
>    - Some of the phones are on different profile than the Cisco. On their
>    profile I set 'dtmf-type=rfc2833' and on the Cisco's profile I set
>    'dtmf-type=info' and Freeswitch did the translation. All works ok...
>     - Some of the phones are on the same profile as the Cisco, so I must
>    set dtmf-type to rfc2833; it works with internal applications (like
>    voicemail) but does not work through the Cisco as it misinterprets the
>    rfc2833
> Is there a way to set some variable (or a parameter to the bridge
> application) to do the translation?
>                              Thanks! __Yehavi:
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