I have never had a problem faxing through pris. It seems to me your tech may be in over his head.

But let me ask a simple question. How is the PRI connected to the XTS? Did you install a PRI card in the system cabinet? Something doesn't make sense to me here. I get the feeling that most of your lines were centrex lines with cordless phones attached directly to them and that the XTS has its own lines seperate from the cordless phones.

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"Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about"

Retired, taking photographs and hoping to fly one of my many kites.