NEC Univerge SV8100 - Page 874

Issue 10.1 UNIVERGE SV8100
2 - 838 Program 84 : Hardware Setup for VoIP
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
07
TDM Echo Canceller Default
ERLE Level
Normally not used. Select length of
echo. Effective when 84-31-01 = 1
0~6 (-9dB ~ +9dB)
0 = -9dB
1 = -6dB
2 = -3dB
:
5 = 6dB
6 = 9dB
5
08
TDM Echo Canceller Echo Type
Select echo canceller type:
1: Based upon ITU-T G.168
2: Based upon ITU-T G.167
Effective when 84-31-01 = 1
0 = Disable
1 = Line Echo Canceller
2 = Acoustic Echo Canceller
1
09
TDM Max ERLE
Normally not used. Select
maximum echo return loss level.
Effective when 84-31-01 = 1
0~10 (24~54dB)
0 = 24dB
1 = 27dB
:
9 = 51dB
10 = 54dB
2 (30db)
10
TDM TX Level Control
Select transmit level control mode.
0 = Disable
1 = TX Control Mode
2 = TX Automatic Level Control
Mode
3 = TX HLC (high Level)
3
Input Data
Item
No.
Item Input Data Default