On 17 May 2006, at 22:48, Andy Kirby wrote:
I am new to the group but have searched the doc's FAQ's etc before
posting here.
We are attempting tie our asterisk server/service to the
building's PBX, the building is in the UK and the local PBX is a
meridian option 11 installed and mainteined by BT.
BT Have installed a NTBK50AA E1-PRI card in the meridian with
daughter cards NTBK51AA (D channel) and NTAK20BD (Clocking)
I have asked BT to configure the card as a Master (Exchange end)
E1 Euro ISDN (Just like a standard ISDN30e)
They claim to have done this in line with the model they use to
interface to Cisco routers etc.
I have installed a Digium TE411P in our server looped back the
span 2 port (Gives a green light and OK with same config as span 1)
and am using a crossover cable to link the PBX to our server. (We
tried a pucker BT cross over cable with exactly the same results as
mine and a striahgt through gives us nothing at all, I guess as you
might expect)
I have configured the Zap span for 1 clocking (Primary) 1 line
build out, with the framing etc as CCS, HDB3, CRC4
But they don't appear to want to synchronise/talk to each other.
ZTTool claims that the span is up and down more times than a
fiddlers elbow and the clocking source is internal.
( Might I expect the alarm state to be constant if the framing etc
was matched and the clock source to show as external ??)
The alarms are cylcling from red to red/yellow and finaly to red/
yellow/recover before falling back to red and starting again.
I think I may be missing something that is probably blindingly
obvious to someone in the know.
The BT guy has been very good and is trying to help us get this
going but seems rather nonplussed with the terms CRC4, CSS and HDB3...
Please can somone help and point me (and I guess by extension the
BT guy) in the right direction.
When you are changing the low level params in /etc/zaptel.conf you
may need to power cycle the
box. I found they don't seem to take unless you powercycle.
Tim.
Tim Panton
[EMAIL PROTECTED]
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