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RTU-292 Operations Manual
Table 3-1 Standard DTMF Operational Commands
These commands may be entered by the RTU-292 front panel keypad, or by the keypad of a
connected telephone or by a telephone set wired to the Local Phone Option. See 3.7.6 for
special instructions regarding the use of the front panel keypad to send DTMF Commands.
DTMF Command Function
* # Terminate the call.
* 0 Manual Keying Toggle.
Press once to key; the next press will unkey, etc.
To prevent simultaneous use of VOX and Manual Keying, if VOX was
enabled when * 0 is first entered, it will be shut off.
* 1 VOX Toggle.
If VOX is on, * 1 will turn it off. If VOX is off, * 1 will turn it on.
* 2 VMR Toggle.
If VMR is on, * 2 will turn it off. If VMR is off, * 2 will turn it on.
VMM-100 Option must be installed
* 3 Noise Reduction Toggle.
If Noise Reduction is on, * 3 will turn it off. If it’s off, * 3 will turn it
on. VMM-100 Option must be installed.
* 4 Security Mode Toggle.
If Security Mode is on, * 4 will turn it off. If it’s off, * 4 will turn it on.
Security Device Option must be installed (not currently available).
* 5 Page the Operator (make a call to the RTU-292 operator at the front
panel keypad / handset).
* 6 Page the Local Phone Operator (this command can obviously made
only by a connected telephone and not by the Local Phone).
* 7 Reserved for future use.
* 8 Radio Control Mode. (Requires optional radio control S/W.)
Use this command to enter the Radio Control Mode (dipswitch SW1-3
must also be ON to enable this mode). This mode enables DTMF
control of a companion Motorola URC-200 radio. See Section 7.
If the RTU-292 is in the Radio Control Mode, * # will return it to
standard RS-232 control mode. See Table 7-6.
* 99 Enter the programming mode.
If passwords are enabled, the user will be prompted for the system
password and not allowed to enter the programming mode unless the
password is correctly entered. See Table 3-2.
JPS Communications, Inc.
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