Client has an MICS with analog line cards. They recently switched (against my recommendation) to an ATT "IP Solutions" product which delivers their dial tone via a router.

Nine lines, all roll-over.

Client has been receiving complaints of busy lines on incoming calls. I tested today and determined that the main line cannot handle more than 2 simultaneous calls (second caller rolls to L2, third caller gets a busy signal).

I KNOW, BEYOND A DOUBT that ATT is going to say "it's your phone equipment". I KNOW THEY'RE GOING TO SAY THIS!(And I'll bet you any amount this will occur).

So, as typical, I have to prepare to defend my Nortel system. Are there any settings in the system that would prevent a roll or cause a busy signal? I've already checked C.O. line distance, etc.


D. Ocean
Miami, FL