yay something i can understand and noob friendly. luv it randall, i can see that the back scratches u make me give you are paying off kisses!

Yes, I do so enjoy the back scratches Randall gives me. Not to mention the kisses!

Sound Cool? OH YES! Can you recommend additionl reading and tutorials? Please!

The best source of information out there is probably the Asterisk source code (you can get this from http://www.asterisk.org/). The next best location is http://voip-info.org/ which has a lot of documentation scattered around (some up-to-date, and some outdated). Another good resource are the trixbox forums. trixbox is the largest open source PBX system in the world, and their forums are very active. Feel free to ask asterisk questions and any other telephony questions there for quick responses. I'm a moderator there as well, so I'll most likely see your questions directly and be able to help.

If you want any live assistance, I'm always happy to help out with things. I'm always in the Neverfear IRC channel (look at our IRC page for information on connecting).

My second piece should be out by next weekend.

Thanks for reading :)

A few small corrections for you:

BRI is not a European version of PRI. BRI (Basic Rate Interface) is an ISDN standard that is not used much anymore. It supports 2 bearer channels and 1 data channel as opposed to the 23 bearer channels and 1 data channel of PRI. It was meant for residential use or on the "station side" of a PBX to combine data and voice services to an individual user.

PRI is normally delivered over a T1 line where 23 of the 24 channels are used for voice and 1 channel is used for for signaling data. In terms of voice calls, PRI carries less traffic than T1, 23 vs 24 simultaneous voice calls, but allows for more sophisticated signaling. In ordinary T1 (non PRI), the signaling is embedded in the voice channels using a scheme called "robbed bit."

E1 is a standard used mostly in Europe and supports 30 simultaneous voice calls compared to the 24 channels of T1. E1 actually supports 32 channels but 2 of these are dedicated to signaling data leaving the remaining 30 channels for the voice calls.

Thanks for this good information.