Customer has COX phone service. Connectivity problems in the past with T-1 circuit.

Garbled voice mail messages.Swapped out PC large card
Still problems Swapped out ACS processor. System has newer style 5 slot carrier and a 206 card.
Seems problems are on the 1st 3 lines, cuz how many people would get deeper into the hunt group after 5:00 P.M.
Still problems
COX uses T-1 from AT&T
Any suggestions??
Thanks

alwayslearning


Telesystems technician