Panasonic KX-NS300CN Pc Programming Manual page 280

9.17 PBX Configuration—[1-1] Configuration—Slot—V-IPCS—Card Property
Value Range
-14–6 dB
DSP Digital Gain (Up)
Specifies the DSP Digital Gain for the up voice path.
Value Range
-14–6 dB
EC Gain
Specifies the Echo Canceller Gain.
Value Range
-14–6 dB
NLP Setting
Specifies the NLP (Non-Linear Processor) setting to control echo sound quality.
Value Range
Disable, Weak, Normal, Strong
280 PC Programming Manual