[asterisk-users] DAHDI Error

[Andrew Thomas]

This sounds like you have it set for T1 somehow?  Have you upgraded
anything lately? Other than that, a Trend tester will show the
problem(s) to you.  

BTW - E1's are 32 channel (not 31).  It's 30B+2D.

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of deeps
backup
Sent: 13 May 2011 16:57
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] DAHDI Error


I can dial 1-24 channels but not after that. There are 8 E1s. Box was
working fine and carrying traffic on all E1s before. Just recently i
noticed this problem has occurred. 


On 13 May 2011 16:30, Rafael Visser <visser.rafael at gmail.com> wrote:

I didn't understand very well.. So you cant dial on the first 24
channels?
Did you take care on the jumper of the card?.  There is something
related to E1 (31 channels) or T1 (24 channels).
And check the system.conf either.

rv




2011/5/13 deeps backup <backup.deeps at gmail.com>

I have checked destination numbers are correct as otherwise calls to
those
numbers are connecting fine. I opened verbose logs and digged into it
more.
I found out can't dial any channels from DAHDI/24 on first E1. Before
that
channel calls are going through fine. I tried test calls to second E1
and
can't dial on it either.

When I check channel or E1 status it is showing fine. Checked chan_dahdi
and
system conf files and see all channels are configured fine.

Could you please help?


On 13 May 2011 15:07, deeps backup <backup.deeps at gmail.com> wrote:



On 13 May 2011 14:06, Eric Wieling <EWieling at nyigc.com> wrote:

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of
> deeps backup
> Sent: Friday, May 13, 2011 9:02 AM
> To: asterisk-users at lists.digium.com
> Subject: [asterisk-users] DAHDI Error

>
> Hi,
>
>
>
> Sometimes calls on Asterisk fail to connect to DAHDI channels
> and giving below error:
>
> Unable to create channel of type 'DAHDI' (cause 34 -
> Circuit/channel congestion)
>
>
>
> There are 8 E1 connected on server and only 15-20
> simultaneous calls. All channels and E1 are showing in
> service without any alarms.
>
>
>
> Could anyone please let me know why this is happening?
>


The message is likely coming from the telco or from the destination
number.  It is a common issue.  I usually put something in my dialplan
to retry all calls that receive an unexpected hangup cause to work
around the telco seemingly randomly sending back odd hangup causes.
You should not retry ALL calls, only ones with unexpected hangup causes.


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I have checked destination numbers are correct as otherwise calls to
those numbers are connecting fine. I opened verbose logs and digged into
it more. I found out can't dial any channels from DAHDI/24 on first E1.
Before that channel calls are going through fine. I tried test calls to
second E1 and can't dial on it either. 

When I check channel or E1 status it is showing fine. Checked chan_dahdi
and system conf files and see all channels are configured fine. 

Could you please help? 





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