YeaLink T19P

[buzzageek]

Hi,

I've got this annoying problem when I pick up the headset and before I make an actual call I can hear my own voice (ie breathing etc) in the receiver. I've done some reading about "side tone" but I cannot find any place to switch this setting off. It's certainly not a setting in the Web GUI of each phone.

Can somebody help me understand why it's doing it and how to switch it off.

Details of the firmware etc are below;

Version

Firmware Version 31.72.0.75
Hardware Version 31.0.0.0.0.0.0

Thanks
Chris