NEC SL1100, Руководство по программированию

Страница: 551 / 666

Item
No.
Item Input Data Description Default
16 G.723 Jitter Buffer -
Maximum 0 ~ 300 ms Set the maximum value of the G.723 Jitter
Buffer. 120
17 Jitter Buffer Mode 1 = static
3 = adaptive immediately Set the mode of the Jitter Buffer.
1 = Size set to the fixed amount for the co-
dec.
2 = The minimum/maximum range for the
codec is used.
3 = The minimum/maximum range for the
codec is used and adjust at any time, re-
gardless of silence. 3
18 Silence Compression
(VAD) Threshold 1 ~ 30
(self-adjustment and - 19
dB ~ + 10 dB)
1 = - 19 dB (- 49 dBm)
:
20 = 0 dB (- 30 dBm)
:
29 = 9 dBm (- 21 dBm)
30 = 10 dBm (- 20 dBm) Set the voice level judged to be silence.
Change value based .30
This entry is ignored if silence compres-
sion is disabled in 84-01-03 with G.711 or
84-01-06 with G.729. 20
28 Priority Codec Setting 0 = G.711 PT
1 = G.723 PT
2 = G.729 PT
3 = G.722
4 = G.726
5 = iLBC The option selected here determines what
other codec options are applied by priority.
For the system to utilize the G.723 or iLBC
Codecs, program 84-27-02 must be set to
G.723/iLBC. 0
30 EchoAuto Gain Con-
trol 0 ~ 5 Define the Auto Gain Control. 0
31 DTMF Payload Num-
ber 96 ~ 127 Define the DTMF Payload Number. 96
32 DTMF Relay Mode 0 = Disable
1 = RFC2833 Determine the DTMF setup used between
the SIP extensions. It is effective when a
terminal call is made through the VoIPDB. 0
33 G.722 Audio Frame 1 = 10 ms
2 = 20 ms
3 = 30 ms
4 = 40 ms 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 assumed to be a unit to 64 kbps by
the encoding compressed method. 3
35 G.722 Jitter Buffer -
Minimum 0 ~ 255 ms Set the minimum value of the Jitter Buffer
of G.722 is set. Jitter is the variation in the
time between packets arriving and the buf-
fer allows this variation to be absorbed. 30
36 G.722 Jitter Buffer -
Standard 0 ~ 255 ms Set the average G.722 Jitter Buffer. 60
37 G.722 Jitter Buffer -
Maximum 0 ~ 255 ms Set the maximum G.722 Jitter Buffer. 120
38 G.726 Audio Frame 1 = 10 ms
2 = 20 ms
3 = 30 ms
4 = 40 ms 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 assumed to be a unit to 32 kbps by
the encoding compressed method. 3
39 G.726 Silence Com-
pression (VAD) Mode 0 = Disable
1 = Enable Select whether to compress silence with
G.726. When there is silence, the RTP
packet is not sent. 0
40 G.726 Jitter Buffer -
Minimum 0 ~ 255 ms Set the minimum value of the Jitter Buffer
of G.726 is set. Jitter is the variation in the
time between packets arriving and the buf-
fer allows this variation to be absorbed. 30
41 G.726 Jitter Buffer -
Standard 0 ~ 255 ms Set the average G.726 Jitter Buffer. 60
ISSUE 3.01 SL1000/SL1100
Programming Manual 2-529
Program
84