NEC Univerge SV8100 Programming Manual - page 853
UNIVERGE SV8100
Issue 11.0
SV8100 Programming Manual
2 - 811
Description
Use Program 84-31 : VoIPDB Echo Canceller Setup to set the IPLB blade
parameters.
Program 84 : Hardware Setup for VoIP
84-31 : VoIPDB Echo Canceller Setup
Level:
IN
Input Data
Item
No.
Item
Input Data
Default
01
TDM Echo Canceller Mode
Select echo Canceller on/off at
receiving (TDM) side.
0: Disable
1: Enable
1
02
TDM Echo Canceller NLP Mode
(2W)
Select Echo Compression Mode
for remaining echo. Effective when
84-31-01 = 1
0 = Disable
1 = Enable
2 = Long Echo Path Mode
3 = Long Echo Path Auto Detect
Mode
1
03
TDM Echo Canceller Comfort
Noise Mode
Normally not used. Select comfort
noise as background noise.
Effective when 84-31-01 = 1
0 = Disable
1 = Enable
1
04
TDM Echo Canceller NLP
Threshold
Set up threshold level when echo
compression is enabled. Effective
when 84-31-01 = 1
0~15
12
05
TDM Echo Canceller Tail
Displacement
Normally not used. Effective when
84-31-01 = 1
0~89 (0ms~890ms)
0
06
TDM Echo Canceller Tail Length
Normally not used. Select length of
echo. Effective when 84-31-01 = 1
1 = 32ms
2 = 48ms
3 = 64ms
4 = 80ms
5 = 96ms
6 = 112ms
7 = 128ms
7