If you're interfacing to the PMS, you need to know serial communications backwards and forwards 'cause most of the PMS installers won't have a clue.

I agree with Alex, keep the ARS tight. Keeping hotel guests from doing something screwy is like keeping squirrels out of the bird feeder. If you leave any holes, they'll find 'em.

Good luck,


Harry at Telecom Equipment & Consulting
Specializing in Mitel systems for the Hotel/Motel industry
www.TECHarry.com