Carl: I found the 136RT but alas, it's discontinued. I see none on eBay. (Here's where you tell me you have 3 in the back room.)
I see it uses a POTS set with non-imposed ringing. That might work, but mounting a buzzer would be a PITA. I'd likely use a DTMF decoder to do the "open" function. -- A host is a host from coast to [EMAIL PROTECTED] & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433 _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt