[cisco-voip] Types of PRIs: "Voice", "Voice, Video and Data", "Unrestricted Digital"

[Philip Walenta]

I've setup many PRI's that do both voice and video (into an MCU).  I've
never run into an issue where channels wouldn't bond. 

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Robert Kulagowski
Sent: Tuesday, February 19, 2008 9:45 AM
To: cisco-voip
Subject: Re: [cisco-voip] Types of PRIs: "Voice", "Voice, Video and Data",
"Unrestricted Digital"

Wes Sisk wrote:
> i'm just dabbling into video, but apparently video is a 3rd type.  the 
> primary difference for telco is b-channel bonding that can occur with 
> video.  A single call on the d-channel can consume 2,3, or more 
> b-channels based on the isdn bearer capability.

Sheesh!  And I thought I had asked a simple question.  So, if I count the
votes, I've got a few different answers, amongst them that yes, there is a
special type of PRI for video (which allows channel bonding) and that no,
there isn't a special type of PRI for video, because the capability type
would just be set to 0x8890.

But, if bonding is all that separates a "video" PRI, then how is that
different than a data PRI where we're aggregating B-channels to create a
256K PPP connection?

Thanks.
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