Guardian Telecom Inc.
Installation and Operation
DTT-50 & DTT-60 Telephones
Page 11
Operating Modes and Software Features
Programming Mode:
1. To enter Programming Mode take the phone off hook by removing the handset from the cradle or by
pressing the [SPK] key. During the programming process do not switch Audio modes.
2. Press the [PRG] key for 1 second until a beep tone is heard and the programming prompt is shown on the
display. The pass code prompt will be shown on the second line of the LCD.
3. Enter the pass code. It must be four characters long, the numeric keys, the ‘*’ and the ‘#’ are valid keys.
The user entered code will not be displayed on the LCD.
Note: The telephone has provision for two pass codes, either one of which will allow access to
Programming Mode. Factory settings are 1234 and 5678.
4. Pass
code
check:
A. If the entered code is incorrect an invalid message will be shown on the second line for two
seconds and the phone will go back to on hook
B. If the entered code matches the preset code, the phone will be in programming mode and the
main register prompt will be shown:
Enter REG #: ..
[REG 0-19, 50-69]
5. Register number selection:
A: Register Code entered:
Enter a two digit register number or use the arrow keys to scroll to the desired register. Once the
first number is entered the second key also has to be a number. Other keys entered following the
first key (except the arrow keys and [PRG] key) will result in an invalid message being displayed
on the LCD for two seconds and two alert beep tones. The LCD will switch back to the main
register prompt.
Once the register number is entered it will be shown on the first line. The previous setting of the
register will also be displayed:
REGxx=xxxx
B. Scrolling:
The first key can be an arrow key (the [
↑
], and the [
↓
] keys). If an arrow key is activated the
selected register will be shifted to the adjacent register (the next higher or lower depending on
whether the entered key is the [
↑
] or the [
↓
] key). The register number will be shown on the first
line and the contents of the register will be displayed. The phone is then ready to accept the
register setting.
Register scrolling can run from registers 00 to 19 (phone number registers), and from 50 to 69
(feature registers). The arrow keys will shift the register within the range 00 to register 19 but will
not jump to registers 50 to 69. To access registers 50 to 69 press [RLS] to get back to the main
register prompt, then enter a register within the range of 50 to 69. Then use the arrow keys to
scroll through registers 50 to 69.
C. Programming phone numbers:
If the selected register is within the range 00 to 19 it is a phone number register that can contain a
maximum of twenty digits. The “#” key is counted as one digit and will be treated as a three
second pause. This may be required if an access number i.e. “9” must be entered to get an
outside line.
Enter the new phone number to replace the previous setting.
a. Use the [MR] key to store the setting to the non-volatile memory. A beep tone will be
heard and the store message will be shown on the display for one second. The LCD
will then switch back to the main register prompt.
b. Use the [RLS] key to cancel the entry leaving the previous phone number unchanged.
The display will switch back to the main register prompt.
c. Use the [LINK] key to clear the contents of the register and switch back to the main
register prompt.
