Dan:

Are we talking about manually-dialed calls from the fax machines or those stored in speed dialing locations? It could be something as simple as just inserting a pause before the phone number entered to allow the system time to grab a line and for the CO to be ready to receive digits.

I don't know much about this system, but is LCR being used for the analog stations? Sometimes, LCR needs to be set up to include the insertion of a pause in the outward dialing digit manipulation.

This is another wild guess: The 5ESS office DOES have about a half-second delay when going off-hook before it's ready to receive digits. Do you know if the CO switch has been changed-out recently by CenturyTel OR if the customer has changed local providers?

A digit grabber is prepared to receive digits immediately when the device goes off-hook, so that may be giving you a false reading as to what the CO switch is actually receiving.

Grasping at straws, but I figured a couple of things to ponder might muster up some input.

Ed Vaughn, MBSWWYPBX