Echo

[allen@millermanor.net]

I posted this a while back on Spiceworks so I am just pasting it in here. Take a look at 'sidetone'

Allen Miller Jul 8, 2014 at 9:54 PM
I just went through this and it is an issue of the phones. Believe it or not it is actually a feature of the phones and it is called side-tone. This is the sound picked up from the mouth piece being played back through the ear piece. If there is none of this people supposedly think their phone is dead when they are talking.

Yealink has a value you can set via provisioning. It is not currently available in the phones web gui.

voice.side_tone =

allowable range of values -48 to 0

Regards,

Allen