asterisk users - Feb 2009 - DTMF tones mid conversation

Hi helpers,

I seem to have a problem of intermittent DTMF tones being played during
a conversation.

Eg: Extn 100 takes an inbound call and all is fine.  Except, at an
undetermined time the person on extn 100 will here a DTMF tone for no
apparent reason (it's not the caller pressing buttons).  The caller
doesn't hear the tone - only the called person.  The call itself
progresses normally.

I am using PRI --> * --> various SIP hard phones.  But I have also heard
it on BRI as well.

Any ideas where to start looking to cure this?

Cheers
Andy

Andrew Thomas wrote:
> I seem to have a problem of intermittent DTMF tones being played during
> a conversation.
I'm having the same problem, but in my case, it's every 1 minute and at 
the start of the call.

I wonder if it has anything to do with echo cancellation.
I've only noticed when using a Zap channel, but I'll run some more
tests.

asterisk 1.4.17 / addons 1.4.7 / zaptel 1.4.12.1 / mISDN 1.1.8

Paulo Santos

Hi Francois,

I am using the latest *, dahdi/zaptel and libpri (1.4-current).  

This happens with both Zaptel and Dahdi and various versions of *
(1.4.22.1 and 1.4.23).

So, even the latest 'stable' would seem to have a problem.

Cheers
Andy


	
 	  	

-->>  -----Original Message-----
-->>  From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-
-->>  bounces at lists.digium.com] On Behalf Of F6HQZ
-->>  Sent: 11 February 2009 16:49
-->>  To: Asterisk Users Mailing List - Non-Commercial Discussion
-->>  Subject: Re: [asterisk-users] DTMF tones mid conversation
-->>  
-->>  Hi men,
-->>  
-->>  Resolved for one of my customers by upgrading
Asterisk/Libpri/Zaptel.
-->>  I don't remember what wer the versions, sorry.
-->>  Check and advise us the results, please.
-->>  
-->>  Best Regards,
-->>  Francois
-->>  
-->>  No virus found in this outgoing message.
-->>  Checked by AVG - www.avg.com
-->>  Version: 8.0.233 / Virus Database: 270.10.19/1941 - Release Date:
-->>  02/09/09 06:50:00
-->>  
-->>  
-->>  _______________________________________________
-->>  -- Bandwidth and Colocation Provided by http://www.api-digital.com
--
-->>  
-->>  asterisk-users mailing list
-->>  To UNSUBSCRIBE or update options visit:
-->>     http://lists.digium.com/mailman/listinfo/asterisk-users