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

[Robert Kulagowski]

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.