"Howard C. Berkowitz" wrote: > I've > always found it a graphic challenge that telephony really has two > communications paths: the control/signaling path for call setup and > the like, and the information transfer path.
Amen to that. Way back in the dark ages (early 1990's) I did an FSM analysis of ISDN BRI UNI signaling. The first part of the project was to gather and summarize the CCITT and ANSI diagrams ( http://vedatel.com/Isdn/bri-uni-signaling.pdf ). It was a straightforward exercise to diagram the D-channel signaling (control plane). The only way I could get the data plane (B channels) into the picture was to use a 3-D tool, so I took the easy way out. I refer you to the bottom right-hand corner of the diagram where the B channels are indicated. Talk about minimalism! I think there's a reasonable way to approach this AVVID diagramming. I'll post when I've got a better grasp of the situation (need to follow up on suggestions from Larry and Priscilla). BTW I'd like to cast my vote of confidence and appreciation for your postings to this list. I'm unconcerned about what letters you append or prepend to your name. It's knowledge I'm after and I'm grateful to say that you share it in abundance. -- TT Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43158&t=42933 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
