[cisco-voip] Configuring dial-on-demand MLPP for remote site?

Lelio Fulgenzi lelio at uoguelph.ca
Thu Oct 12 11:32:49 EDT 2006


This was just covered in one of the CIPTUG sessions (see, you should have 
come! ;) - I can't remember the particulars, but the short answer, I 
believe, is yes. You have to be using H323 (or SIP) and not MGCP, since MGCP 
does not support voice/data on the same PRI.
--------------------------------------------------------------------------------
Lelio Fulgenzi, B.A.
Network Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
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"I can eat fifty eggs." "Nobody can eat fifty eggs."
----- Original Message ----- 
From: "Robert Kulagowski" <bob at smalltime.com>
To: "cisco-voip" <cisco-voip at puck.nether.net>
Sent: Thursday, October 12, 2006 11:14 AM
Subject: [cisco-voip] Configuring dial-on-demand MLPP for remote site?


> Is it possible to configure a 2821 or 2851 so that if the WAN link goes
> out, it steals 3 or 4 channels in a voice PRI to dial back to a RAS
> server and re-establish a data link?  The channels should only be
> allocated when necessary.
>
> We'd like to avoid SRST as much as possible, and we haven't had the WAN
> _and_ the voice PRI go out at the same time, so it would be a nice bonus
> to get some redundancy without having to buy extra equipment / circuits.
>
> If it's possible, then a config example would be nice.
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