|PRI Problems (was Re: 1A2 Help Requested)|
|Justa Lurker (JustaLurker@att.net)|
Thu, 12 May 2005 01:03:30 GMT
>>> Our PRI between our two switches regularly goes down for anywhere from |
>>> 30 seconds to 5 minutes. This seems to occur most between 8:30AM and
>>> 9:00AM and then again between 2:00PM and 2:30PM. Verizon claims they
>>> can't figure it out.
>> Clock slip?
> That's my gut feeling on it. I've tried explaining that to Verizon but
Can you be more precise about what PRI "goes down" means ?
I guess that could be interpreted a lot of different ways.
When the trouble happens, are calls in progress affected, or do they
Have you monitored the PRI line at your end with a suitable analyzer
For example, does something strange happen down at Layer 1 (physical
Or is some trouble occurring at Layer 2 (link layer) with the LAPD
How about Layer 3 (network layer) ... are you seeing any incriminating
While the problem exists, does the Verizon switch busy out your lines
Although I suppose a timing/sync problem with clock slippage **might**
Of course, the toughest part is getting through to talk to someone at
Finally it may be worth checking with the folks in
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