[asterisk-users] DTMF doesn't work between Asterisk and Cisco SIP Proxy

[tracinet]

Jason,
I am at least having similar issues with rfc2833 DTMF:

http://bugs.digium.com/view.php?id=10058


On 6/20/07, Jason Ma <realmj at gmail.com> wrote:
>
> Hi buddies,
> I encountered DTMF issue when I tried to place call from x-lite to a
> sip conference serice,here is the diagram.
> X-lite---->Asterisk--->Cisco SIP proxy---->SIP Conference service
>
> The Call can be established,and I can hear from x-lite the prompt of
> the conference,but when I input any digits,nothing happened,the
> conference service did not recognize my input.At the same time,in the
> log of asterisk,I can find that asterisk recognized all the
> digits....I tried "rfc2833","inband","info" in the "dtmfmode"
> parameter,but did not work ,I'm not sure whether asterisk send the
> right dtmf to cisco proxy,how can I track that?
>
> I made another test,dialing from x-lite registered with Cisco proxy to
> voicemail service of Asterisk.
> x-lite---->Cisco SIP proxy---->Asterisk--->Voicemail service
>
> Both the call and dtmf worked fine,I can input my mailbox number and
> password and listen my  voicemail.both "rfc2933" and "inband" worked
> in this situation,but not "info".
>
> My Asterisk is 1.4.4 with asterisk now,I did not configure dtmfmode in
> the section of  xlite and the trunk to cisco proxy,just configure the
> dtmfmode in sip.conf.
>
> When I used "rfc2833",I can see the log in asterisk as :
>
> [2007-06-19 16:01:40] DTMF[8925] channel.c: DTMF begin '2' received on
> SIP/9999-08269470
> [2007-06-19 16:01:41] DTMF[8925] channel.c: DTMF end '2' received on
> SIP/9999-08269470, duration 160 ms
> [2007-06-19 16:01:42] DTMF[8925] channel.c: DTMF begin '1' received on
> SIP/9999-08269470
> [2007-06-19 16:01:42] DTMF[8925] channel.c: DTMF end '1' received on
> SIP/9999-08269470, duration 140 ms
>
> and when I used "inband",I can see :
>
> [2007-06-19 15:55:21] DTMF[8852] channel.c: DTMF end '2' received on
> SIP/9999-09d916c0, duration 0 ms
> [2007-06-19 15:55:22] DTMF[8852] channel.c: DTMF end '1' received on
> SIP/9999-09d916c0, duration 0 ms
>
> Is that right?Can I check what digits that asterisk sent out ?
>
> How can I track where is wrong with the dtmf?Did asterisk send dtmf to
> Cisco proxy correctly?
> I really have no idea about that.Please advise.Thank you very much!!!!
>
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