[Asterisk-Users] Calling CHRIS BARNET (PRI / E100P / ntl)

[Chris Barnett]

Hi,

Following the *extremely* helpful assistance of Darren Storer I did
establish that the NTL line I currently have is ISDN 85 (partial ETSI)
whereas Asterisk and the E100P want *full* ETSI (ISDN 110). Not that NTL
even understood what it was I was trying to achieve and were initially
very confused at the difference between ISDN 85 and ISDN 110, they just
kept repeating that their line was Q.931 and therefore should be fine -
certainly not the case! They got there in the end though :)

I did hit a brick wall with NTL on upgrading the line though, the
equipment delivering the line to my premises is not up to the job and
needs upgrading/replacing by NTL, this has meant it's all had to go off
to their finance department for approval etc. etc. Basically I've got
mired up in NTL red tape :( You may be luckier in that the equipment
used to deliver your line has been upgraded over the last few years to
cope with ISDN 110, you'll need to speak with your NTL account manager
to find this out.

I've been speaking with Darren recently and there *may* be a chance that
ISDN 85 support could be coded into the drivers for *, but even if this
were to happen it's a way off. If NTL can't upgrade your current line to
ISDN 110 and you can't wait for any possible ISDN 85 support in * then
your only other option is to look at changing teleco. For me it's not
all doom and gloom as the nice people at BT have been able to put a
*very* attractive proposal together to persuade me to switch from NTL
and provide me with a pucker ETSI line in the process - so hopefully
all's well that ends well!

Chris

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com]On Behalf Of Darren Round
Sent: 12 May 2004 12:43
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] Calling CHRIS BARNET (PRI / E100P / ntl)


Chris you might know the answer to my HUUUUUUGE problem

A few weeks ago you posted this message:
"I have an ISDN PRI supplied by NTL (ex Diamond Cable, Nottingham) which
is currently working happily with an SDX Index phone system. I have to
replace this phone system shortly and I've been trying to get a * system
working for some weeks now. I have configured the dial plan (which
works) and all my SIP extensions (which all work) along with voice mail
etc. etc. - all this works perfectly as an internal PBX. My problem
comes when I try to connect it to my ISDN line."

Thread:
http://lists.digium.com/pipermail/asterisk-users/2004-April/044169.html

I have exactly the same hardware, telephone company, setup and have
exactly
the same problem.  Im in Lincoln and Im running asterisk version:
Asterisk
CVS-03/09/04-13:55:16 on a dual PIII500 Linux machine.  I have no
physical
alarm lights, my E100P is working, zttool is reporting no alarms but
everytime ntl try to bring up the line I get the same error as you:
May 11 14:12:06 WARNING[1192491824]: Detected alarm on channel 1: Red
Alarm
May 11 14:12:06 WARNING[1192491824]: Unable to disable echo cancellation
on
channel 1
Etc... Etc.. Etc... For all my 10 channels.

Did you managed to solve this by asking ntl to deliver ISDN 110 or was
is
something else?

I hope you receive this because Im getting a bit desperate :(

Thanks

Darren

Darren Round B.Sc.(HONS)
MANAGING DIRECTOR
Advanced I.T. Solutions Ltd
The Upper Lodge
Sewell Road
Lincoln
LN2 5QX
UK
T: 0800 952 0080
F: 0870 751 0590

Forza Ferrari! - *FIVE* times world champions in succession! -

**************************************************
Chris Barnett - Managing Director
inspHire Limited
5 Chase Park, Daleside Road
Nottingham NG2 4GT
United Kingdom

Tel: +44 (0)870 013 0030 Fax: +44 (0)115 911 1447
chris.barnett at insphire.com www.insphire.com
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