Configuration
New Interface? [1=FXS 2=MIC-PTT 3=E&M] >>
New Preamp gain? [0 +6 +12 +24 dB] >>
New Input gain? [-42 to +20 dB] >>
New Output gain? [-42 to +20 dB] >>
New Voice rate? [2250 2400 3600 4800 6400 8000 9600 ADPCM PCM] >>
Always off-hook on FXS interface? [Y/N] >>
New Jitter delay? [40 - 1000 ms] >>
The input voice waveform is amplified by the sum of the preamp gain and the input gain. The preamp gain
provides a coarse setting while the input gain supports a finer adjustment.
The output voice waveform is amplified by the output gain setting.
Only the first two digits are required to select the rate. If the network rate is too slow to support the
selected voice rate, a WARNING message will be displayed.
The always off-hook on FXS interface option provides a 2-wire E&M-like interface on the FXS port. That
is, there is an open bi-directional audio channel at all times. No ringing is provided in this mode. This
option is not available if the interface is strapped for FXO.
If the E&M interface is selected there is an option to use M-input to control transmit. In this mode, analog
voice transmission will occur only when the M-lead is driven to -48v with respect to E&M ).
More jitter delay means more buffered voice packets and increased end to end voice delay. Less jitter delay
raises the possibility that the buffer will empty due to network multiplexing or radio delays, and audio
glitches may be heard. Jitter delay is set in 20ms increments.
AVA-E will perform an automatic reset at the end of the CV command, unless no values were
changed.
Use the SV command to display the settings without changing.
Show Configuration (SC)
AVA Config
------------------------
Network: LAN PORT
IP Address: 192.168.0.1
IP Port: 3000
Port rate: 9600 bps
Parity: NONE (8N1)
Flow control: NONE
Transmit timer: 10 ms
DCD to RXD on holdoff: 0 ms (DCD FORCED ON)
RXD to DCD off holdover: - ms (
Line only appears for nonzero holdoff values
)
Interface: FXS
Preamp gain: +0 dB
Input gain: -3 dB
Output gain: -3 dB
Voice rate: 3600 bps
Jitter delay: 140 ms
AVA ID: AVA1
17
