asterisk users - Nov 2005 - PRI problems again - What should I do ?

I know that's a real newbie question, but I have a problem.

I keep getting frame rejects, and a D-channel bouncing up and down. BT 
say that it is at my end. If I stop asterisk, stop the zaptel service 
and restart, things seem ok for a while.

I posted a similar problem a couple of days ago, and one of the 
responses suggested that the TE4xxP may be on it's way out.

Is there any way of testing this card to see if that may be the case ?

I was thinking of buying a sangoma a102 as a fall-over - are there any 
issues with the sangoma cards, or should I buy another te4xxp as a backup ?

I was also thinking of moving the * server to a dell 2850 (2x3.06 
processors, 2GB ram, 2x146gb hdd) - again, any gotchas ?

Sorry for so many questions, but we are placing / receiving near on 3000 
calls a day now and my butt is getting sore from all the kicking I've 
received :)

Many thanks for the anticipated (and needed) help :)

Julian

On Thu, 2005-11-24 at 10:26 +0000, Julian Lyndon-Smith wrote:
> I posted a similar problem a couple of days ago, and one of the 
> responses suggested that the TE4xxP may be on it's way out.
> Is there any way of testing this card to see if that may be the case ?
Speak to digium and ask them how to run a pattern looptest... You need a
custom cable (not a PRI crossover cable) and some software, but I forget
the details... else search on the wiki for patlooptest or similar
terms...
> I was thinking of buying a sangoma a102 as a fall-over - are there any 
> issues with the sangoma cards, or should I buy another te4xxp as a backup ?
I would suggest keeping identical hardware for your backup use... since
if you use different hardware, you need a different config, and hence
are not testing/isolating the source of the problem...
> I was also thinking of moving the * server to a dell 2850 (2x3.06 
> processors, 2GB ram, 2x146gb hdd) - again, any gotchas ?
Have no idea, but personally I don't like dell :) The only other thing I
would suggest is not to try changing too many things at the same time.
> Sorry for so many questions, but we are placing / receiving near on 3000 
> calls a day now and my butt is getting sore from all the kicking I've 
> received :)
Try and call digium when you can do some proper testing (ie, outside of
your general usage hours, or off-peak hours or whatever... or, if you
can, just schedule an outage time.....

Digium provide warranty + support on their products, so best to call
them and find out.

Regards,
Adam

On 24 Nov 2005, at 10:26, Julian Lyndon-Smith wrote:
> I know that's a real newbie question, but I have a problem.
>
> I keep getting frame rejects, and a D-channel bouncing up and down.  
> BT say that it is at my end. If I stop asterisk, stop the zaptel  
> service and restart, things seem ok for a while.
Pardon me for asking the obvious, but...

Have you _double_ checked the timing params in /etc/zaptel.conf?
your bt span should say something like:

span=1,1,0,ccs,hdb3

or perhaps

span=1,1,0,ccs,hdb3,crc4

(if they have enabled crc on the link)


I found that changes to this file only seemed to take effect on a  
cold start.

Tim.

http://www.westhawk.co.uk/

-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20051124/015ef874/attachment.htm

Hi Julian,

I think the Dell poweredge2850 servers are not too compatible with the
zaptel cards..

Thanks
krishna


On 11/24/05, Julian Lyndon-Smith <asterisk@dotr.com>
wrote:
>
> I know that's a real newbie question, but I have a problem.
>
> I keep getting frame rejects, and a D-channel bouncing up and down. BT
> say that it is at my end. If I stop asterisk, stop the zaptel service
> and restart, things seem ok for a while.
>
> I posted a similar problem a couple of days ago, and one of the
> responses suggested that the TE4xxP may be on it's way out.
>
> Is there any way of testing this card to see if that may be the case ?
>
> I was thinking of buying a sangoma a102 as a fall-over - are there any
> issues with the sangoma cards, or should I buy another te4xxp as a backup
> ?
>
> I was also thinking of moving the * server to a dell 2850 (2x3.06
> processors, 2GB ram, 2x146gb hdd) - again, any gotchas ?
>
> Sorry for so many questions, but we are placing / receiving near on 3000
> calls a day now and my butt is getting sore from all the kicking I've
> received :)
>
> Many thanks for the anticipated (and needed) help :)
>
> Julian
> _______________________________________________
> --Bandwidth and Colocation sponsored by Easynews.com --
>
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://lists.digium.com/pipermail/asterisk-users/attachments/20051124/0f736540/attachment.htm

> 
> They claim that there is nothing wrong and that it is my equipment
that
> is the problem. I asked them to reset the line last night, so I'll see
> what happens today. Also sent a rocket up the backside of my salesrep,
> so perhaps that may achieve something ...
If I had a dollar for every time I have heard this I would not be rich
but would certainly have a couple hundred dollars.

Just get a tech onsite.  If they send a useless tech, get another one
out there.  In my experience, it is usually the second or third tech
when the telco tech says, "here is the problem" or finds no problem
but
all of a sudden things work as they should.

Thanks,
Steve