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Posted by Bob Simon on February 23, 2008, 4:28 pm
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The bank I work for has three branches in a small community in
Alabama. They have on-net dialing to the rest of the company via two
E&M tie lines that run from the local CO to our closest PBX. (Local
access is Centrex.) The office with the PBX lost power last weekend
due to severe weather; this event prompted us to test all phone
services for these branches. As of yesterday, one of the tie lines
was still down. We've been working with AT&T for two days on this but
apparently there is a small local phone company that is involved in
providing these circuits, which is delaying resolution.
The manager at one of these branches says that on-net dialing has been
intermittently unavailable for at least 6 months. This makes me
wonder if one of the tie lines may have been out of service for a long
time and we never knew it until we tested last week.
1) Our PBX shows the circuit as idle. Is it likely that an AT&T (or
local phone company) switch was in alarm? If so, should we expect
notification?
2) These branches have a total of 20-25 employees. Does 2 tie lines
for on-net dialing sound under-trunked to you? Is there a rule of
thumb for this?
3) I plan to request a traffic study. Is one week enough time for
statistically meaningful results?
Thanks for any insights you can offer.
Bob
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