Thales VesseLINK Certus 200, Руководство пользователя

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4-43
User Manual PN 84469 Rev L
Table 4-11 Settings

Radio Gateway
Section Value
Configuration
Transmit VoIP Gateway
Mode DTMF or Voice Activated Dialing ( VAD ) ( VAD is the default
setting). This configuration determines how the telephony user of the
radio gateway PTTs in order to speak on the radio network. VAD
means the telephone user simply needs to speak in order to transmit.
DTMF requires the telephone user to press a digit to begin
transmitting and a digit to stop transmitting.
DTMF: ON Digit
Valid DTMF digits range from “0” thru “9”, “
*
”, “#”. (The default
digit is “
*
”.) Dialing the selected digit will cause the radio to start
transmitting
DTMF: OFF Digit
Valid DTMF digits range from “0” thru “9”, “
*
”, “#”. (The default
digit is “
#
”.) Dialing the selected digit will cause the radio to stop
transmitting.
VAD: Voice Hang
Time VAD Voice Hang Time determines how long the telephone user’s
voice transmission will continue after the voice is no longer present.
Acceptable value range is 0 to 5000 msec. (Default setting is
500
msec).
Transmit Audio
Delay Sets the delay being applied to the transmit audio (when VoIP is
VAD). Acceptable values range from 0 to 500 seconds. (Default
setting is
300 msec).
Analog Gain Sets the gain (in dB) applied to the hardware in the radio to transmit
audio. Acceptable values -20 to 20 dB. (Default setting is -
20 dB).
Digital Gain Sets the gain (in dB) applied to the software in the radio to transmit
audio. Acceptable values -40 to 20 dB. (Default setting is
-20 dB).
VAD: Threshold For VAD mode, controls the sensitivity of voice detection on outgoing
telephone user’s audio. Acceptable values -40 to 20 dBFS. (Default
setting is
-35 dBFS)
Transmit / Radio PTT
Active Level Enabled / Disabled ( ENABLED is the default setting). This setting
should be adjusted to match the connected radio, depending on if the
connected radio has external PTT as ENABLED or DISABLED in
order to transmit.
Timeout The maximum amount of time, in seconds, that PTT to the radio will
be continuously asserted. After this timeout expires, the radio will be
de-keyed until the telephony user causes it to begin transmitting again.
Receive Activity
Mode The mechanism used to detect receive activity from the radio (a.k.a.,
channel busy or COR)—either via the presence of voice or the
assertion of the hardware COR input pin (GPIO). Select
VAD or
GPIO (Default setting is VAD ).