[cisco-voip] PSTN connection terminated before error message

Mike Armstrong mfa at crec.ifas.ufl.edu
Mon Feb 6 11:10:17 EST 2006


I tried everyone's suggestions for 3640 configuration changes, but they had 
no effect.  The q.931 debug showed Verizon issued a Release Complete about 
60ms after our Setup message, so it was pretty obvious Verizon wasn't 
maintaining the connection long enough for any messages to be heard.  I 
spent a hour or so with Mr Verizon this morning and he eventually confirmed 
that their switch (GTD5) could not provide the audible messages heard on an 
analog phone. There was some confusion toward the end of our conversation 
when he said that if I held the call longer, I could hear the message, but 
since the 3640 disconnects in response to Verizon's Release Complete, that 
didn't make much sense to me. Bottom line -- I'm sending an e-mail to our 
users telling them that if this happens, they dialed incorrectly, please 
check the number and dial again.

Mike Armstrong
UF/IFAS CREC
Lake Alfred, FL

> Date: Wed, 25 Jan 2006 15:00:53 -0500
> From: "Mike Armstrong" <mfa at crec.ifas.ufl.edu>
> Subject: [cisco-voip] PSTN connection terminated before error message
> To: <cisco-voip at puck.nether.net>
> Message-ID: <016f01c621ea$0c2d7f50$400cfb0a at crec.ifas.ufl.edu>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> A user here inadvertently dialed a number in the same area code, but 
> outside
> the local calling area -- i.e., she dialed 94411244 when she should have
> dialed 818634411244.  (9-local, 8-LD).  As soon as "To 94411244" was 
> displayed on
> the 7940, the screen was wiped to an on-hook indication.  Placing the same
> call on a directly connected PSTN station, you hear ring tone, then after 
> a few seconds the
> intercept tones, then a message: "Your long-distance carrier cannot
> completeyour call as dialed...".  Is there any way to configure 
> CallManager
> (or, more likely, the router) to maintain the connection so that the user
> will hear the error message? 



More information about the cisco-voip mailing list