Signalling.
>Which is better?
Meaningless question. They are not used for the same thing. You wouldn't
use a Channelized T1 where you want a regualar T1, or a Fractional-T1.
And you wouldn't use full T1 or frac-T1 where you want Channelized-T1.
>Does the PM3 support both?
Ready to get confused?
At FCS the PM-3 supports PRI dialin/out, full T1 WAN routing, fractional-T1
WAN routing, and channelized-T1 WAN routing (all PPP or Frame Relay).
Later there will be an upgrade to allow Channelized-T1 dialin/out.
That's right, there is more than on kind of Channelized-T1. I believe there
are 7 different systems.
>What is a rough estimate of a a T1 with 24 dialin numbers from
>bellsouth? Channelized or not whichever apply?
Right now to handle dialin you must use PRI. You have to wait in order to
be able to use Channelized-T1.
>Can either T1 do ISDN? So the customer calls one phone number and gets
>either ISDN or Analog when dialing in?
No. PRI allows you to handle ISDN and/or analog calls. Channelized-T1 is
analog calls only.
>Does the PM3 do ISDN on the 24 channels without any modem cards. In
PRI is 23 channels, Channelized T1 is 24. With PRI the PM-3 will do ISDN
without any modem cards, yes.
Channelized-T1 doesn't do ISDN at all, moot point.
>conecerning the PM3 Do you have to provision the t1 so that lets say 8
>are for analog and 16 are for ISDN, so if 8 analog users are on and
>another call will it get a ninth channel that is not used or do you have
>to specify which are anolog and which are digital.
Again, you want PRI *not* T1/fracT1/chanT1 for this.
And no, the PM-3 can tell what kind of call it is and decide how to
handle it.
-MZ
-- Livingston Enterprises - Chair, Department of Interstitial Affairs Phone: 800-458-9966 510-426-0770 FAX: 510-426-8951 megazone@livingston.com For support requests: support@livingston.com <http://www.livingston.com/> Snail mail: 6920 Koll Center Parkway #220, Pleasanton, CA 94566