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

[Lelio Fulgenzi]

I also believe, and this is what I'm planning on, is you can use MGCP, 
failover to H323 when you loose the WAN link and then establish the 
dataconnection to keep going. Calls in progress are lost though.

--------------------------------------------------------------------------------
Lelio Fulgenzi, B.A.
Network Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
"I can eat fifty eggs." "Nobody can eat fifty eggs."
----- Original Message ----- 
From: "Lelio Fulgenzi" <lelio at uoguelph.ca>
To: "Robert Kulagowski" <bob at smalltime.com>; "cisco-voip" 
<cisco-voip at puck.nether.net>
Sent: Thursday, October 12, 2006 11:32 AM
Subject: Re: [cisco-voip] Configuring dial-on-demand MLPP for remote site?


> 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)
> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> "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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>
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