[Freeswitch-users] dtmf problem

[Tim Bock]

Hi,

Mine was a combination of things.  One problem seemed to be as I 
described in an earlier post, that something (dahdi?) was not happy if I 
disconnected the trunk lines.  This manifested as the dtmf problem and 
echo cancelling problem (and "cat /proc/dahdi/1" would show oslec as 
INACTIVE).  Even after figuring out that shutting down the machine and 
restarting helped, I still had an occasional echo problem even though 
"cat /prod/dahdi/1" showed that oslec was active.  I eventually fixed 
that by increasing the taps to 128 in zt.conf.

As you can no doubt tell from my posts, I am a relative noob to 
freeswitch, but these are things which worked for me.  I did a previous 
installation which was sip only (no analog card), and that was much easier!

Best,
Tim

On 01/22/2013 02:16 AM, Viacheslav Dubrovskyi wrote:
> 14.01.2013 06:39, Tim Bock ?????:
>> Hello List,
>>
>> I have a freeswitch server with a digium tdm wildcard.  Compiled,
>> enabled, and configured freetdm and dahdi...all seems to be working fine
>> (can make/receive calls).
>>
>> My problem is with dtmf.  When calling from an external pstn number to
>> freeswitch, dtmf seems to be detected properly and consistently. But
>> when calling from a cell phone or via another voip line, dtmf doesn't
>> seem to be detected, or detected only occasionally.
>>
>> On the same system, if I call into the voip number, calls from any of
>> the three external options (landline, cell, sip) all seem to work fine
>> with dtmf.
>>
>> So the problem seems to be something I've misconfigured with the tdm
>> card.  Can anyone point me in the right direction?
> Found this post
> http://fonality.com/trixbox/forums/trixbox-forums/help/inbound-dtmf-pri-t-analog
>
> It seems that explains. But I not sure.
>
>
>
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-- 
Tim Bock
Synacktics, LLC
www.synacktics.com
(505)795-1511

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