V-9921HF Hands-free Talkback uses the CO or Analog Station ports for the "Talk Back" thus had the ability to disconnect from the page when the caller hung up, thus providing the Line Disconnect signal to the V-9921HF.

Generally, paging ports will not work with "talk back" speakers because the ports are "one-way" only.

Again, if I remember correctly.

Edited to add: This was the blue Hands Free Talkback Module that had the wiring off of a 25 pair Amphenol to a 66M1-50

Last edited by Professor Shadow; 01/25/17 05:11 PM.
Dean
Photographs:
https://www.instagram.com/deanwilsoncanby/
https://fstoppers.com/profile/deanwilsoncanby
https://www.facebook.com/Dean-Wilson-Photography-112841337020414

Please don't confuse your "Internet Search" with my licenses, certifications and over 30 years experience.

"Thank you for calling Technical Support. If you feel you have reached this number in error, please hang up and press redial."