[asterisk-users] channel.c: Unable to request channel ZAP

[Shweta Jain]

Hi there

I also get this error:
 Unable to create channel of type 'Zap' (cause 34 - Circuit/channel congestion)
  == Everyone is busy/congested at this time (1:0/1/0)

whenever I try to call my Alcatel 4400 PBX etxn from SIP using TE110P. The output of zap show channels is:
 Chan Extension  Context         Language   MusicOnHold
 pseudo            incoming        uk         default
      1            incoming        uk
      2            incoming        uk
      3            incoming        uk
...so on till 
     31            incoming        uk
except channel 16 which is delta

All 30 channels show status FREE on the exchange end. 

Any help would be greatly appreciated.

Regards
Shweta

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com on behalf of Forrest Beck
Sent: Thu 11/2/2006 9:19 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] channel.c: Unable to request channel ZAP
 
What does "zap show channels" show?  Are all the channels shown as in
use? What is set in zapata.conf for resetinterval= ? If anything.  I
believe that resetinterval is used to reset unused channels for any
channels that are left open.

On 10/31/06, Asterisk <asterisk at abraxas.si> wrote:
>
>
>
>
> Hi All,
>
>
>
> I have one rather annoying problem...my PBX can work great for weeks, when
> suddenly I start receiving these messages when I try to make a zaptel call:
>
>
>
> Oct 31 13:52:47 NOTICE[15636] app_dial.c: Unable to create channel of type
> 'ZAP' (cause 34 - Circuit/channel congestion)
>
> Oct 31 13:52:49 NOTICE[15648] channel.c: Unable to request channel
> ZAP/g1/247
>
>
>
> I'm using Sangoma A104 card (with four E1 spans), and these problems are
> only occurring on the first two spans (which are connected to a legacy PBX)
> - the second two spans, which are connected to the Telco, work perfectly.
> Even more: when these messages start to occur, I can hardly initiate any
> call via problematic two spans (1st and 2nd), where I can with no problem
> initiate a new call thru the unproblematic two spans (3rd and 4th).
>
>
>
> Restart of the Asterisk is the only cure so far.
>
>
>
> Does anyone know what could possibly be the cause, or how could I
> troubleshot this problem?
>
>
>
> Regards.
>
> Alex
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