POTSwap User Guide JA16-EVDO-UM
Page 9 Rev: P07 Date: 08/01/16
© Copyright 2016 Janus Remote Communications
Specifications subject to change without notice
All Rights Reserved See website for latest revision. Not intended for life support applications.
4 Configuration continued
CONFIGURATION COMMANDS
COMMAND
FUNCTION
M – MODIFY
Enter the parameter modification menu.
D – DEFAULTS
Set all parameters to their default (factory) value.
X – EXIT AND SAVE
Save changes and exit the configuration menu.
Q – QUIT AND DISCARD CHANGES
Discard changes and exit the configuration menu.
M – MODIFY Commands:
Entering an ‘M‘ command will cause the current setting for each parameter to be output, and allows changing the
parameter setting. Currently, the following parameters can be modified:
CONFIGURATION PARAMETERS
PARAMETER
DEFAULT
RANGE
FUNCTION
Microphone Level
4
0-7
Sets the outbound audio gain
Speaker Level
7
0-14
Sets the inbound audio gain
Echo Cancellation
1
0-1
Enables the Echo Cancellation feature
0 = Echo Cancellation disabled
1 = Echo Cancellation enabled
Open Switching Interval
900
0-1200
Sets the period that the battery voltage is removed from the
(milliseconds)
telephone line following the termination of a call from the
carrier side, a dialing timeout, or a locally generated busy
tone. (AKA Kewlstart.)
Dialing Tone Timeout
2
30000
500-60000
Sets time limit for first dialing digit to be entered following
(milliseconds)
off-hook. Exceeding the time limit will cause Open Switching
Interval to be generated.
Dialing Digit Timeout
2
6000
250-15000
Sets time limit for time between entering dialing digits.
(milliseconds)
Exceeding the time limit will cause Open Switching Interval to
be generated.
Busy Dwell Timeout
2
6000
1000-30000
Sets length of time a busy tone is generated locally on calls
(milliseconds)
where the cellular carrier does not provide an audio connetion
to a busy tone. The Open Switching Interval will be generated
following the busy tone.
Fixed Format Dialing
3
0
0-1
Enables Fixed Format dialing. When set to ‘1’ (enabled), only
10 digit (or 11 digits when first digit is a ‘1’) dialing is allowed.
When set to ‘0’ (disabled), any number of dialed digits is
accepted once the Dialing Digit Timeout is exceeded. Dialing
the number sign (‘#’) short-cuts the Dialing Digit Timeout and
immediatly accepts the dialed digits.
Fail Over
4
0
0-2
Dial tone availability:
0 - Any network availability, including emergency (911) ONLY.
1 - Home network registration
2 - Home or Roaming registration
SLIC ADC Gain
2
0-8
Sets outbound audio gain during the initial outbound DTMF
dialing. Corrects for distortion using some auto dialers.
SLIC DAC Gain
4
0-8
Sets inbound audio gain. Should be set at 4.
Loop Current Limit
3
2
0-7
Sets the telephone loop current limit, from 20mA (0) to 41mA (7)
in 3mA steps. Default is 26mA (2).
Loop Closure Sensing Type
1
0
0-1
Sets loop closure (off-hook) sensing type.
0 = current sensing
1 = voltage sensing
Use 0 (current sensing) for applications using ringer loads of
REN=1 or less. Use 1 (voltage sensing) for ringer loads of
REN>1, up to REN=5.
