[asterisk-users] is there a reference guide to "pri debug span" messages?

[Jerry Jones]

On Oct 23, 2008, at 3:10 PM, John Cheng wrote:

> Maybe I just haven't thought of the right google search terms -- but  
> is
> there a website/guide out there that will help me understand the  
> output
> from "pri debug span"?
>
> ___

perhaps this might be helpful?

Q.931 Spec
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