[Freeswitch-users] Hint for DTMF handling in sofia.c
kristian.kielhofner at gmail.com
Thu Jan 8 13:23:18 PST 2009
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
> 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.
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