[cisco-voip] what do people mean by "fractional" T1/PRI (supporting PRIs with fewer than 23 possible calls)

[Norton, Mike]

I think that either (a) it’s highly provider-dependent, or (b) this is one of those ISDN things that Canada does a little differently than elsewhere. Not sure which it is.

With my Telus PRIs, all channels are available for calls in any direction. The Telus switch simply limits how many simultaneous calls there can be. I didn’t have to do anything special on my end to let the gateway or CUCM know about the limit.

--
Mike Norton
I.T. Specialist
Peace Wapiti School Division No. 76
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From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Lelio Fulgenzi
Sent: March-21-13 1:11 PM
To: Cisco VoIP List
Subject: [cisco-voip] what do people mean by "fractional" T1/PRI (supporting PRIs with fewer than 23 possible calls)


We're looking at keeping a couple of PRIs at our remote sites, but lowering the number of actual calls that can actually be made over those PRIs. That's because here, we pay for the data portion and the voice portion separately.

I'm pretty sure there won't be any special configuration necessary to get this working, since the PRIs will come up (or show) with all 23+1 channels available.

I'll discuss the options with our provider, e.g. is it cheaper to get a fractional PRI, but I'm worried about the support side of things on the gateway. I've seen references to busying out the channels using the maintenance mode enterprise parameter, but I'm a little weary of that.

Thoughts?

Lelio


---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (ANNU)
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Cooking with unix is easy. You just sed it and forget it.
                              - LFJ (with apologies to Mr. Popeil)

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