System information

Program 84 : Hardware Setup for VoIP
84-11 : Dterm IP Codec Information Basic Setup
UX5000 Software Program Manual Programming ◆ 861
16 G.723 Jitter Buffer - Maximum
Set the maximum value of the G.723 Jitter Buffer.
Moreover, this option is adjusted with the UX5000 as it is used by
both IP terminals and the VOIPDB and the range of the adjustment of
Jitter for the IP terminal is narrower and transmitted to the IP termi-
nal. The range of IP terminal is 10-300 (10).
0-270 ms 120
17 Jitter Buffer Mode
Set the mode of the Jitter Buffer.
1 = Size set to the fixed (standard) amount for the codec.
2 = The minimum/maximum range for the codec is used.
3 = The minimum/maximum range for the codec is used and adjusts
at any time, regardless of silence.
1 = static
2 = adaptive during
silence
3 = adaptive immediately
3
18 Silence Compression (VAD) Threshold
Set the voice level judged to be silence.
Voice level compression -3dB of the standard level is determined to
be silence. Change value based –30dB
This entry is ignored if silence compression is disabled in 84-01-03
with G.711, or 84-01-06 with G.729.
(VAD=Voice Activity Detection)
0-30
(self-adjustment and
-19db ~ +10db)
0 = self-adjustment
1:-19db (-49dbm)
:
20 = 0db (-30dbm)
:
29 = 9dbm (-21dbm)
30:10dbm (-20dbm)
20
19 Idle Noise Level
Set the noise level which is generated when silent.
5000-7000
(-5000 ~ -7000dbm)
5000 = -5000dbm
:
7000 = -7000dbm
7000
20 Echo Canceller Mode
Determine whether or not to use Echo canceller.
0 = Disable
1 = Enable
1
21 Echo Canceller Tail Size
Becomes invalid item if 84-11-21 is set to Disabled.
Set the decrease echo when delayed.
1 = 4ms
2 = 8ms
3 = 16ms
4 = 32ms
5 = 64ms
6 = 128ms
6
22 Echo Canceller NLP Mode
Non-linear processing mode.
Enable this option to decrease the low level echo. When NLP is
enabled, the voice with low level is replacecd with NLP noise. As a
result, a low echo of the level is usually removed compared with the
conversation level.
0 = Disable
1 = Enable
1
23 - Not Used - --
Item
No.
Item Input Data Default