| I don't know about 2,5, but here we use 5&4 of an 8-pin for voice T&R. You also have to tell the system that you have bridged a SL set to that extension.
You'll see 24 volts DC and about 90v AC when the line rings. You also ought to see about 13v DC on the data pair (pins 3&6).
I think the REN is limited to 3 or less. Some loud bells are pretty close to that, so you might have a problem..If it works without the PT set, then it ought to work with it.
Carl |