Analog POTS lines feedback noise

[bwbwbw]

Never had this before. I have a site with 4 TRUE analog POTS lines, not SIP, and using 9508 sets. Using speaker phone after they dial 9 for an available line they hear a loud feedback squelch until the call is answered.

This is happening on all 9508 sets. Could it be the card module? This is a new installation from Cox so the modem is new but they did have to come out because the first modem they installed did not work.

 

[sizbut]

Modem?

Stuck in a never ending cycle of file copying.

 

[jinxs]

Turn off Echo Cancellation.

Press HOME (Key with The A on the button, exact center of the phone)
Press arrow down button to ADVANCED OPTIONS, press OK
Press arrow down button to AUDIO, Press OK.
Press arrow down button to ECHO CANCELLER, Press CHANGE to turn off.
Press SAVE.
Press BACK, Then EXIT.