Hi Chuck,
Not on 7940's
This setting is configurable on the following models only;
Configurable Sidetone
The Configurable Sidetone feature enables administrators to configure a higher sidetone level for user headsets on these Cisco Unified IP Phones—7971G-GE, 7970G, 7961G-GE, 7961G, 7941G-GE, and 7941G. Sidetone lets users hear their voices played back in the headset and provides assurance that the phone is working.
A new parameter, Headset Sidetone Level, was added to the Unified CM application in the Phone Configuration window. These are the parameter options:
•
Use Phone Default—Maintains the existing voice level played back in the headset
•High—Increases the voice level played back in the headset, which encourages a lower speaking voice and is desirable in environments such as call centers
Note To configure the parameter, choose Device > Phone, select the appropriate IP Phones, and scroll to the Product Specific Configuration Layout pane.
While some users prefer the higher voice level in the headset, other users may find the level to be uncomfortable or they may hear an echo. In this case, administrators should return the setting to the Use Phone Default setting.
Typically, only call center users should use the High setting with the higher voice level played back in the headset.
This feature is supported on these SCCP and SIP phones:
•Cisco Unified IP Phone 7971G-GE
•Cisco Unified IP Phone 7970G
•Cisco Unified IP Phone 7961G-GE
•Cisco Unified IP Phone 7961G
•Cisco Unified IP Phone 7941G-GE
•Cisco Unified IP Phone 7941G
For my buddy Paolo
Sidetone - is audible feedback to someone who is speaking.
In telephony sidetone is the effect of sound that is picked up by the telephone's mouthpiece and in real-time introduced at a low level into the earpiece of the same handset, acting as controlled feedback
.
http://en.wikipedia.org/wiki/Sidetone
Hope this helps!
Cheers!
Rob
