NEC SL2100 Programming Manual page 562

SL2100
Item
No.
17 Jitter Buffer
Mode
18 Silence Com-
pression (VAD)
Threshold
Program
84
28 Priority Codec
Setting
33 G.722 Audio
Frame
35 G.722 Jitter Buf-
fer - Minimum
36 G.722 Jitter Buf-
fer - Average
37 G.722 Jitter Buf-
fer - Maximum
38 G.726 Audio
Frame
39 G.726 Voice Ac-
tivity Detection
2-538
Item Input Data
1 = Static
3 = Self adjusting
0 ~ 30
(Self-adjustment and -
20 dB ~ + 10 dB) (for
VoIPDB mode)
7 ~ 20
(Self-adjustment and -
13 dB ~ 0 dB)(for Built-
In VoIP mode)
0 = -20 dB (-50 dBm)
1 = -19 dB (-49 dBm)
:
7 = -13 dB (-43 dBm)
:
20 = 0 dB (-30 dBm)
:
29 = 9 dB (-21 dBm)
30 = 10 dB (-20 dBm)
0 = G.711 PT
1 = Not Used
2 = G.729 PT
3 = G.722
4 = G.726
5 = Not Used
6 = G.711 Only
7 = G.729 Only
1 = 10 ms
2 = 20 ms
3 = 30 ms
4 = 40 ms
0 ~ 300 ms (for VoIPDB
mode)
10 ~ 300 ms* (for Built-
In VoIP mode)
1 = 10 ms
2 = 20 ms
3 = 30 ms
4 = 40 ms
0 = Disable
1 = Enable
Description
Set the mode of the Jitter Buffer.
1 = Size set to the fixed amount for
the codec.
3 = The minimum/maximum range
for the codec is used and adjusts at
any time, regardless of silence.
Set the voice level judged to be si-
lence. Change value based 0dB
(-30 dBm).
This entry is ignored if silence com-
pression is disabled in 84-01-03 with
G.711 or 84-01-06 with G.729.
The option selected here deter-
mines what other codec options are
applied by priority.
Maximum number of G.722 Audio
Frames. G.722 assumes the audio
signal made by a specimen by 16
kHz and the frame of 10 ms is as-
sumed to be a unit to 64 kbps by the
encoding compressed method.
Set the minimum value of the Jitter
Buffer of G.722 is set. Jitter is the
variation in the time between pack-
ets arriving and the buffer allows this
variation to be absorbed.
Set the average G.722 Jitter Buffer.
Set the maximum G.722 Jitter Buf-
fer.
Maximum number of G.726 Audio
Frames. G.726 assumes the audio
signal made by a specimen by 16
kHz and the frame of 10 ms is as-
sumed to be a unit to 32 kbps by the
encoding compressed method.
Select whether to compress silence
with G.726. When there is silence,
the RTP packet is not sent.
Program 84 : Hardware Setup for VoIPDB
ISSUE 2.0
Default Related
Program
3
20
0
3
30
60
120
3
0