They made some models that worked on Comdial and Hitachi hotel/motel systems that used low voltage ringing, but I can't remember the actual specifications for them since they weren't in very high demand. WECO's Horizon also had a hotel/motel package that used the second pair for ringing. Teledex was/is the name in OEM phones for the hospitality industry, so I'm sure that anything is possible. I have to agree about the REN part though. That's usually a dead giveaway.


Ed Vaughn, MBSWWYPBX