T1 verus PRI pricing
David Shull
a T1 line from the various RBOCs. Unfortunately, this
information has been relatively hard to find. If anyone has
any information or suggestions about sources, they would be
greatly appreciated.
We are comparing T1 prices to PRI prices to determine how great
the PRI demand will be as a replacement for T1. If you compare
PRI and BRI pricing, the ratio is still outrageously high in
the U.S. (19.3 BRI lines for every PRI line versus 11.1 in
Europe). I am wondering whether T1 lines are also outrageously
priced in the U.S.
Thanks for any help.
Scott Kozicki
> We are comparing T1 prices to PRI prices to determine how great
> the PRI demand will be as a replacement for T1. If you compare
> PRI and BRI pricing, the ratio is still outrageously high in
> the U.S. (19.3 BRI lines for every PRI line versus 11.1 in
> Europe). I am wondering whether T1 lines are also outrageously
> priced in the U.S.
BellSouthLand:
PRI = ~$1800/mo
T1 = ~$2000/mo (depending on distance)
higher setup for PRI than T1, but cheaper equipment costs and more flexibility.
Scott Kozicki
<SKoz...@BlueStar.net>
Tom Lang
>David Shull <shul...@aol.com> writes:
>
>>I am trying to find estimates of the monthly rental charges for
>>a T1 line from the various RBOCs. Unfortunately, this
>>information has been relatively hard to find. If anyone has
>>any information or suggestions about sources, they would be
>>greatly appreciated.
>
>>the PRI demand will be as a replacement for T1. If you compare
>> PRI and BRI pricing, the ratio is still outrageously high in
>>the U.S. (19.3 BRI lines for every PRI line versus 11.1 in
>>Europe). I am wondering whether T1 lines are also outrageously
>>priced in the U.S.
>
>
Primary Rate ISDN is a 23B+D service delivered over a DS-1 carrier -
also called T-1, so you are charged for both the PRI service AND the
T-1 carrier. PRI has been popular for many years to connect PBX's to
the telco switch instead of having separate trunk groups for each call
type supported. They could all be bundled over the same PRI.
When considering connecting to any internet via PRI or native T-1, the
carrier costs are fixed monthly charges. A native T-1 is always
point-to-point, router to router. The entire bandwidth is "reserved"
but only links to unique destination router. With PRI, you will have a
T-1 to the telco switch and can call one - or multiple - destinations
with multiples of 64K, dynamically if desired. It wouldn't make sense
to use PRI if it was only calling a single destination router; T-1 or
multiples of BRI would be less expensive.
Note that PRI is not necessary for circuit switched Fractional T-1
bandwidth. PRI has a place in provisioning flexible bandwidth for
videoconferencing where the picture quality requirements vary from
session to session (e.g., executives).
Do a complete workup on the line AND equipment costs. Individual BRI's
for example necessitate multiple ports on a router or bridge. You can
add it all up and decide based on your anticipated requirements. PRI
might be advantageous if maximum future flexibility is important.
TOM LANG
David Lesher
What are you trying to compare?
A DS1 circuit from Ma may:
be point to point; i.e. leased line;
offer DID, and/or trunk feeds;
carry PRI;
and you need to say WHAT you are asking about.
But I'd not forget to contrast the cost per B channel in PRI and BRI;
for political reasons, it's often CHEAPER to get it in BRI form.
Remember, it has no logic; it's a tariff....
Scott Kozicki
> Today, a typical customer access line is about $23/month. At that
> rate it would be about 22 DS0's for $500.
Business tariff? I don't think so. Most biz lines are about $35+/DS0.
Besides, the point is that you can use T1/PRI bandwidth any way you
please, instead of screwing around with the phone company asking them to
configure this and change that. That's the advantage. Flexibility.
Scott Kozicki
<SKoz...@BlueStar.net>
Steve Schaefer
>
>I am trying to find estimates of the monthly rental charges for
>a T1 line from the various RBOCs. Unfortunately, this
>information has been relatively hard to find. If anyone has
>any information or suggestions about sources, they would be
>greatly appreciated.
>
>We are comparing T1 prices to PRI prices to determine how great
>the PRI demand will be as a replacement for T1. If you compare
> PRI and BRI pricing, the ratio is still outrageously high in
>the U.S. (19.3 BRI lines for every PRI line versus 11.1 in
>Europe). I am wondering whether T1 lines are also outrageously
>priced in the U.S.
>
>Thanks for any help.
>
>
Two types of T-1. The first type is point to point (dedicated). These
are charged as the two lines from each point to their respective telco
central offices, plus transport charges (if appropriate). (Competitive
Access Providers who compete with the local telcos typically use the
same price structure even though their networks are built differently.)
Typical rates are $100 to $260 per month for the T-1 to the telco central
office plus a fixed amount for going between central offices, typically
$50 to $90, plus an amount per mile, typically $10 to $16. So a
dedicated T-1 in your immediate area may cost as little as $200 per
month (cheap line, both locations out of the same telco central office)
or as much as about $650 per month ($260 lines + $60 fixed transport +
5mi*$14/mi). Of course, you typically pay more for additional mileage.
A long-distance T-1 has three pieces. The long-distance carriers piece
(on a scale something like $1000 plus $2 per mile---you may pay more or
less), and the connections between the two endpoints and the long-
distance carrier (provided by a local telco), perhaps $400 each. As a
result, even a short "long-distance" T-1 might typically cost about
$2000, although this depends a lot on the carriers involved.
The second type of T-1 is just a pipe for some other service. If a
local phone company (RBOC, GTE, etc.) is providing the service, then
the T-1 runs from your facility to their switch or data port. PRI, for
example is delivered in a T-1. Your question could be construed to ask
about a comparison between PRI service and some other type of trunked
phone service. For example, you can get a T-1 with 24 regular switched
phone lines carried in the 24 channels of the T-1. You can also have
DOD (direct outward dial) T-1 trunks, DID (direct inward dial) trunks.
If we assume that you are talking about replacing dedicated lines, then
PRI is a poor choice in most (if not all) situations where you need the
T-1 point-to-point connection all of the time. PRI is a good choice in
most of the situations when you need the T-1 point-to-point connection
occasionally.
As other responses have pointed out, where PRI shines is in its ability
to request a variable amount of bandwith to anyone with ISDN. It is like
the difference between an intercom and a telephone.
Brian Kantor
Measured rate trunk for access $ 16.10
Primary Rate IS $190.74
DS1 to transport it from the wirecenter to us $354.40
=======
$561.24
or about $24.40 per month for each B channel.
- Brian