AudioCodes MP-20 Series User Manual

User's Manual 94 Document #: LTRT-50614
MP-20x Multimedia Home Gateway
Parameter Description
CED Transfer Mode
ced_transfer_mode
 By Fax Relay: When the device is the receiver side, Switch to
Fax relay is enabled upon CED. This allows a high reliable
fax-over-IP call establishment at the beginning of CED tone.
 In Voice Or PCM Bypass: When the device is the receiver
side, to avoid possible conflicts with low-speed modems, the
CED (ANS) relay by FoIP protocol may be disabled by setting
the CED transfer mode to ‘In Voice Or PCM Bypass’. In this
case, the device does not initiate the Fax Relay on detecting
CED to
ne in absence of CNG, but switches to VBD or remains
in voice mode (depends on the Modem Transport Mode). the
device switches to FoIP later when it defines exactly that a
monitored call is the fax call (CED and CND or V.21
Preamble).
Enable CNG Detection
cng_detection_enabled
Enables detection of the fax CNG signal. When the local fax
machine connected to the device receives a fax, the device
switches to T.38 fax relay upon detection of the CED signal from
the local fax. If the local fax machine sends a fax, the device
switches to T.38 only after detecting the CNG signal from the
local side and the CED signal from the remote side. If this check
box is selected, the device switches to T.38 relay immediately
upon detection of the CNG signal from the local side, without
waiting for the CED signal from the remote side. The default is
disabled.
Switch to Fax only by the
Answering Side
update_fax_to_transparent_enable
When setting this parameter to "Enable", the device, as the fax
sender, will not send a T.38 Re-Invite and will wait for the
answering side to initiate the T.38 session.
The following is an example of the relevant Telnet parameters:
rg_conf/voip/audio/jitter_buffer/min_delay=35
rg_conf/voip/audio/jitter_buffer/optimization_factor=7
rg_conf/voip/audio/echo_cancellation/enabled=1
rg_conf/voip/audio/automatic_gain_control/auto_gain_enabled=0
rg_conf/voip/audio/automatic_gain_control/auto_gain_location=F
or Remote User
rg_conf/voip/audio/automatic_gain_control/auto_gain_target_ene
rgy=-19
rg_conf/voip/audio/silence_compression_enable=0
rg_conf/voip/audio/g711_g726_comfort_noise_enable=1
rg_conf/voip/audio/fax/max_buffer=1024
rg_conf/voip/audio/fax/max_datagram=320
rg_conf/voip/audio/fax/ImageDataRedundancyLevel=0
rg_conf/voip/audio/fax/T30ControlDataRedundancyLevel=0
rg_conf/voip/audio/fax/FaxModemJitter=0
rg_conf/voip/audio/fax/bypass_coder=PCMA
rg_conf/voip/audio/fax/ced_transfer_mode=by_fax_relay
rg_conf/voip/audio/fax/cng_detection_enabled=1
rg_conf/voip/audio/fax/remote_side_reinvite=0
rg_conf/voip/audio/fax/max_rate=14.4 Kbps
rg_conf/voip/audio/fax/error_coerrection_enable=0
rg_conf/voip/audio/fax/fax_bypass_payload=102

AudioCodes MP-20 Series Specifications

General

Brand	AudioCodes
Model	MP-20 Series
Category	Adapter
Language	English