NEC SL1000 - DR700 Multiline CODEC Basic Information Setup

Program 84 : Hardware Setup for VoIPDB
84-24 : DR700 Multiline CODEC Basic Information Setup
Level
IN
Description
Use Program 84-24 : DR700 Multiline CODEC Basic Information Setup to set the codec of each
type of DR700 Multiline Telephone.
Input Data
Type 1 = Type 1
2=Type2
3=Type3
4=Type4
5=Type5
Item No. Item Input Data Default
01 Number of G.711 Audio Frame
Maximum number of G711 Audio Frames. When the voice
is encoded using the PCM (Pulse Code Modulation)
method, a unit is a frame of 10ms.
The Audio frame size setting is only from IP phone to IP
phone. When the IP phone communicates to a TDM de-
vice it will always use a 20 ms frame size.
Softphone (SP310) only supports 20 ms or 40
ms.
1=10ms
2=20ms
3=30ms
4=40ms
2
02 G.711 Silence Detection (VAD) Mode
Select whether to compress silence with G.711. When
there is silence, the RTP packet is not sent.
When VAD is enabled the CPU will stop sending silence
packets but the IP phone will continue to transmit silence
packets.
0=Disable
1=Enable
0
03 G.711 Type
Set the type of G.711.
0 = A-law
1 = μ-law
0
04 G.711 Jitter Buffer - Minimum
Set the minimum value of the G.711 Jitter Buffer.
0 ~ 255 ms 20
05 G.711 Jitter Buffer - Standard
Set the average value of the G.711 Jitter Buffer.
0 ~ 255 ms 40
06 G.711 Jitter Buffer - Maximum
Set the maximum value of the G.711 Jitter Buffer.
0 ~ 255 ms 80
07 G.729 Audio Frame
Maximum number of G.729 Audio Frames. G.729 as-
sumes the audio signal made by a specimen by 8 kHz and
the frame of 10 ms is assumed to be a unit to 8 kbps by
the encoding compressed method.
The Audio frame size setting is only from IP phone to IP
phone. When the IP phone communicates to a TDM de-
vice it will always use a 20 ms frame size.
Softphone (SP310) only supports 20 ms or 40
ms.
1~4
(1=10ms,2=20ms,etc.)
2
08 G.729 Silence Compression (VAD) Mode
Select whether to compress silence with G.729. When
there is silence, the RTP packet is not sent.
When VAD is enabled the CPU will stop sending silence
packets but the IP phone will continue to transmit silence
packets.
0=Disable
1=Enable
0
ISSUE 1.0SL1000/SL1100
Program
84
Program 84 : Hardware Setup for VoIPDB2-490