Off-hook voltage is about 9VDC. There is no mother station, just one extension with TAD (not required for system operation).

I visited the site of a system with these same instruments and no problems. Loop current: 39mA, off-hook voltage: 15VDC. I think that if I can get the loop current to reside somewhere nearer that of the working site I'll achieve proper system operation without cross-talk.

Any other ideas?

Thanks for your help.

Thanks for your help,

JE