Samsung OfficeServ 7100 Technical Manual page 75

OfficeServ 7100
TECHNICAL MANUAL
MMC: 835
DESCRIPTION:
This MMC provides various MGI DSP options. These settings will apply to the 8 MGI
channels on board plus any MGI-16 installed in the system.
• AUDIO CODEC: Selects which audio codec compression will be used and
transmission interval time of VoIP packets generated from MGI card.
Selections: G729A (8K), G.729 (8K), G.711 (64K), G.723.1 (5.3K~6.4K). Does
not apply to ITP to ITP communications. Use settings in MMC 840/MMC 841 for
ITP to ITP communications.
• ECHO CANCEL: Enables or disables echo cancellation (0: disable, 1: enable).
This function removes echo that is generated by voice reflection and packet
delay.
• SILENCE SUP: This parameter determines whether silence suppression is used
(0: disable, 1: enable). This prevents transmission during the silence period of a
call, and conserves bandwidth when enabled.
• IN FILTER: This option select input filtering of the DSP (0: disable, 1: enable).
This should always be set as ENABLE.
• OUT FILTER: This option select output filtering of the DSP (0: disable, 1:
enable). This should always be set as ENABLE.
• INPUT GAIN: PCM input gain value of DSP. The range is –31dB~31dB (0~63).
This sets the quality of PCM voice from the VoIP DSP to the site.
• VOICE VOL: This value selects the voice volume. The range is –31dB~31dB
(0~63).
• JITTER OPT: This is a scale value that introduces a intentional buffer (delay) of
the transmission of VoIP packets generated by the MGI card. This value
determines whether the focus is on packet loss or packet delay. The range is
00~12.
• MIN JITTER: Decides the minimum time to consider delay for jitter adjustment.
The range is 010~300ms.
• MAX JITTER: Decides the maximum time to consider delay for jitter adjustment.
The range is 010-300ms.
PART 2 APRIL 2007
MGI DSP OPTION
PROGRAMMING