i have a customer who has a merlin legend...intermittently the switch board will ring and when answered, the receptionist hears a piercing noise and then the "off hook" message from the CO stating "if you would like to make a call, please hang up and try your call again" is heard...this customer is on a T1 with a channel bank..the lines are loop start terminal ID's for the rollover group members and all other lines are loop start dedicated..the switch board gets the rollover lines..the T1 has been tested extensively and the channel bank has been replaced..also, the hardware on the legend has been replaced and nothing fixes the problem..this appears to be a programming issue not a hardware issue..disconnect supervision has been adjusted but no resolution...this only happens at the switchboard which accesses the rollover members...the rollover members terminate to the auto-attendant first...can someone help the T1 tech out?....