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aj.murphy · Guest

Hi all.

I need help finding out the setting on the OPTION11 to set and/or check
the timing setting on a T1 link to an Avaya switch. I'm new to Nortel
and telephone switches in general but have Cisco LAN/WAN experience.

The Avaya is reporting CSS (Controlled Slip Secs) errors on the link
and I need to know how to verify the timing and how to set/change to
correct the errors. At the moment the link is going down at lease 4
times a day.

Any help is appreciated. TIA.

-ajm

GHT_WHO? · Guest

In the Admin book, go to LD73 - you'll see - follow the link to the
page with the "main menu" picture - you can get the manual you need
plus more - plus free

Here ya go - hope the link works here in this format...
http://161.58.174.191/micro_merl/

Yet another free service of GHTROUT

john doe · Guest

I don't know about the avaya switch. But the nortel only receives clocking
form 1 source at a time. This is hardware dependent as well as software
dependent. The first choice for any pbx is the public network. A pbx should
only clock off another pbx if there is no public network to clock from. So
first question, do both pbx's have a public network t1. If so and they are
both in sync with the public network, the problem will most likely be a
hardware or circuit issue. It gets even fuzzier if there are drop/inserts
muxs on the link between the 2 pbx's, as their clocks have to taken into
consideration also. You probably need to get a technician from each vendor
to work this type of problem out. As well as knowing their own pbx, they
will need to know the circuit design between the 2 pbx's. It's easy if you
know what you are doing and it ain't if you don't.

"aj.murphy" <golizhe@gmail.com> wrote in message
news:1132636129.166011.272960@g44g2000cwa.googlegroups.com...

aj.murphy · Guest

The NORTEL had 1 last public t1 that was a tie to another Option11 at a
remote site nearby. That site has been moved into our new build in
June. I think Qwest has been taking it's time tearing down the t1 and
probably caused the timing issue fudging with the circuit.

In the end we had NORTEL and Avaya techs look at the problem. In the
end the clock on the Nortel side had to be modified to take it's clock
source from the Avaya. It's working now and we have had no downtime on
that link since.

Thanks all.

-ajm

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