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Section
Configuration
Transmit VoIP Gateway
Mode
DTMF: ON Digit
DTMF: OFF Digit
VAD: Voice Hang
Time
Transmit Audio
Delay
Analog Gain
Digital Gain
VAD: Threshold
Transmit / Radio PTT
Active Level
Timeout
Receive Activity
Mode
User Manual PN 84469 Rev L
Table 4-11 Settings
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.
Valid DTMF digits range from "0" thru "9", "*", "#". (The default
digit is "*".) Dialing the selected digit will cause the radio to start
transmitting
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 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).
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).
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).
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).
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)
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.
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.
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).
Radio Gateway
Value
4-43
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