[Freeswitch-users] Freetdm DTMF

curriegrad2004 curriegrad2004 at gmail.com
Thu May 10 02:22:21 MSD 2012

I'm guessing the bind digits in your analog card was set to listen for
this sequence on the a-leg given if the call was being routed from the
IP side to the analog side.

Try changing that to listen on the b-leg.

On 5/9/12, Shane Harrison <shane at longwhitecloud.com> wrote:
> Hi All,
> Have a situation where I have a call between a SIP phone and a FreeTDM
> channel.   Pushing *3 on the analog FreeTDM phone is detected and this is
> bound to a dialplan extension (attended transfer) that does a read():
> <action application="read" data="3 3 'tone_stream://%(10000,0,350,440)'
> digits 30000 #"/>
> However pushing further digits on the analog phone ie. extension number of
> phone we wish to do an attended transfer to , doesn't result in the DTMF
> being detected.  Note that this all works the other way around ie. using
> the SIP phone.
> When the *3 digits are pushed on the analog phone I see the logs report:
>  ftdm_io.c:3463 [s2c1][1:4] Queuing DTMF * (debug = 0)
> mod_freetdm.c:702 Queuing DTMF [*] in channel FreeTDM/2:1/
> ftdm_io.c:3463 [s2c1][1:4] Queuing DTMF 4 (debug = 0)
> mod_freetdm.c:702 Queuing DTMF [4] in channel FreeTDM/2:1/
> When the further keys are pushed ftdm_io reports nothing.
> I have tried inserting a start_dtmf before the read() but it had no effect.
> Any thoughts as to why DTMF isn't being seen from the analog phone after
> the read()?
> Cheers
> Shane

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