That's a good point. It depends on whether you're in a metropolitan area
or a very rural area where there's no local tandem. In most LATAs where
AT&T and Verizon are the main ILEC, the small ILECs will use the ILEC
tandem to pick up traffic. But there are a lot of the rural areas
(especially in the old Qwest territory) where the larger towns are so
much farther apart that they didn't put in local tandems. So you had to
trunk everything directly to the end office or through an access tandem
if you had SPOP. If the small ILECs had multiple end offices, they might
have even put in their own tandem for just their area.
So you definitely need to check out the routing information in the LERG
before you make any assumptions about what rate centers are encompassed
in a tandem area.
MARY LOU CAREY
BackUP Telecom Consulting
Office: 615-791-9969
Cell: 615-796-1111
On 2020-12-09 10:25 AM, John Levine wrote:
In article
<1038462169.17163.1607448901620.JavaMail.mhammett@Thunderfuck2> you
write:
My operating theory is that if it's on the same tandem switch, I might
as well treat it as local.
If only. At my rural ILEC, the next town up is a remote from the
switch in my town but for historical reasons they are not local to
each other so at least for people who haven't switched to bundled
plans, calls between them take a 150 mile detour to the tandem and
back.
That particular tandem also covers places 250 miles from here. I guess
it's nice if that's local.
R's,
John
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