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Version 1.73 Copyright © 1997 Link Communications Inc. 1/18/97
DTMF interdigit timer - command 020) the controller assumes that you didn't want to do that
command and it throws it away. This keeps a digit accidently entered from messing up a
command you might enter 30 seconds later (if you didn't unkey in the meantime). It also
reduces the likelihood of DTMF voice falsing (see introduction to Chapter 3) causing a
command to be executed accidently; if your voice falses the decoder and you don't unkey for a
few seconds, the controller will just discard that falsed digit. There are times, however, when it
isn't possible to unkey and it would be handy to have another way to tell the controller to
execute. If your repeater squelch gets stuck open or someone sits on their mike, the controller
won't be able to tell if you unkey. In this situation, you can enter a command and then force it
to execute with the force-execution digit (normally 'D', but can be changed with this command).
If your radio doesn't have 'D' on the DTMF keypad, you won't be able to do this. Another
situation is when you call in on the reverse autopatch; you can't unkey and most phones don't
have the 'D' key. In either of those cases, you might want to turn on timed execution. When
timed execution is turned on, instead of throwing a command away if you pause for a few
seconds, the controller executes it. This is the preferred method of entering commands on the
reverse autopatch. If you use it, you will probably want to shorten the DTMF interdigit timer
(see command 020) to 2 or 3 seconds. This option is typically only used on radio ports if you
are controlling from a radio that doesn't have 'D' on its DTMF keypad. This option is not
available (the setting is ignored) for commands entered from the serial port.
The Force-Execution Digit:
As mentioned previously, the force-execution digit tells the controller to immediately execute
any command that may have been entered, without waiting for you to unkey. It is
recommended that you leave this digit set to 'D' in most cases, but if you need to change it, 'A',
'B', 'C' and '*' are other acceptable choices ('*' works pretty well from the reverse autopatch if
you don't want to use timed execution). Please note that you will not be able to use any
commands that have the force-execution digit in their names, so avoid that digit when setting
up command names. If you use '*' as the force-execution digit for your repeater port, you will
not be able to use '*' as your autopatch up code. If you use the DTMF mute bypass feature (see
introduction to Chapter 3), your choice of force-execution digit will affect that as well.
On the serial port, the force-execution digit defaults to 'D' for consistency with the radio ports,
but since you can always hit enter and you will sometimes want to use 'D' in your comments, it
is recommended that you change the force-execution digit for the serial port to '!' or other
uncommon character.
Advanced Note:
If you are trying to change the force-execution digit for one port (call it 'A') by entering this
command on another port (call it 'B'), you will be unable to change A's force-execution digit to
be the same as B's. This is because when port B sees that digit, it can't tell whether you want it
to execute immediately or whether that is what you are trying to change A's force-execution
digit to. The easy solution is to enter this command from the port that you are trying to change.
If you must enter it from another port, temporarily change the force-execution digit for B, then
change it for A, then change B back to what it was. If you didn't understand this paragraph, just
ignore it.
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