[Freeswitch-users] Hint for DTMF handling in sofia.c

[Kristian Kielhofner]

On 1/8/09, Helmut Kuper <helmut.kuper at ewetel.de> wrote:
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> Hi Brian,
>
>  sorry, got lost  ...  It's a bug in Snom and AVM's phones?
>
>  Maybe we misunderstood. RFC 2833 emtioned in chapter 3.10 following DTMF
>  Events:
>
>  3.10 DTMF Events
>
>    Table 1 summarizes the DTMF-related named events within the
>    telephone-event payload format.
>
>                      Event  encoding (decimal)
>                      _________________________
>                      0--9                0--9
>                      *                     10
>                      #                     11
>                      A--D              12--15
>                      Flash                 16
>
>                      Table 1: DTMF named events
>
>  Most phones in germany are able to send * and # DTMF events and
>  Phone-applications like voiceboxes or IVRs need those Events.
>
>  Therefor I don't think it's a bug in Snom or AVM ...
>
>  But maybe you mean Snom and AVM should send "Signal=10" instead of
>  "Signal=*" ?

Yes, it should use the decimal encoding from the table you mentioned.

-- 
Kristian Kielhofner
http://blog.krisk.org
http://www.submityoursip.com
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