MrGemini:

The distance is less than 1,000 feet. Thanks for the info. I did retrieve the fax back docs from Viking and it looks like that is exactly what I need. I will call the guys at Sundance tomorrow.

DrPbx:

This has to be implemented on the line level since the circuit must be accessible by multiple extensions on either end. My question has more to do with whether PARTNER ACS needs dial tone. An automatic ringdown does not use dial tone.

Thanks for your help!