Panasonic KX-NS500 Pc Programming Manual page 315

EC Gain
Specifies the Echo Canceller Gain.
Value Range
-14–6 dB
Maintenance Console Location
9.15 PBX Configuration—[1-1] Configuration—Slot—V-SIPEXT—Card Property
Feature Guide References
5.2.2 SIP (Session Initiation Protocol) Extension
NLP Setting
Specifies the NLP (Non-Linear Processor) setting to control echo sound quality.
Value Range
Disable, Weak, Normal, Strong
Maintenance Console Location
9.15 PBX Configuration—[1-1] Configuration—Slot—V-SIPEXT—Card Property
Feature Guide References
5.2.2 SIP (Session Initiation Protocol) Extension
9.15 PBX Configuration—[1-1] Configuration—Slot—V-SIPEXT—Card Property
PC Programming Manual 315