Re: On-going cost effectiveness of PM3?
alexm@agetech.net
Fri, 22 Nov 1996 19:12:15 -0500
Richard_R.Moore wrote:
>
> The PM3 is set up to take in either channelized T1 or a PRI line from the
> telephone company and feed each channel to a digital modem and hence to the
> ethernet. My understanding is that this would replace the individual phone
> lines, modems, and PM2's with the appropriate number of serial ports to handle
> the modems. In other words, 24 phone lines, modems, and the entire PM2 would
> be replaced by one channelized T1 and a PM3 with 24 modems (3 modem cards).
>
> In a rational communication world, this would be a nice condensation of
> serveral components and represent a significant savings.
>
> Of course, we will want to have our users still be able to call one phone
> number and get a connection, just as they would with the PM2's on a trunk
> hunting, or uniform call distribution, or ACD system.
>
> However, unless i am asking the wrong question of my telephone company
> (ameritech), a channelized T1 _with a channel bank at the central office_ will
> cost about $300 per month MORE than individual phone lines. The channel bank
> at the central office, i am told, is required to permit users to access any of
> the 24 T1 channels by simply dialing a single phone number as they do now. If
> i could avoid the channel bank, the cost would be some what less.
>
> Since we are very "on-going" money sensitive, i doubt if i could justify the
> use of a PM3 -- even if it were free!
>
> So, trying to cling to "it is a rational world", i MUST be missing something;
> i must not be asking for the right service from ameritech. Can anyone tell me
> how to do this in ameritech of michigan territory?
>
> (Of course, a PRI line is much more expensive than a T1 line, so that is not
> an option either.)
>
> Thanks for any help you can give.
I thought the PM3 DOES NOT do Channelized t1?