File AP72-06 Issue 6
Page 1
GSGC7 OPERATING INSTRUCTIONS
GENERAL
This unit has a standard keypad and 4 additional buttons. It also has a 2 line by 16 character
LCD display. The display is used to prompt the user and to show various actions.
KEYPAD
Each of the 0 to 9 keys has 3 or 2 letters of the alphabet printed next to them. In some uses of
these keys it is possible to use them to enter a particular letter. This is done with a single press
to produce the number, 2 quick presses to produce the first letter of the group, 3 quick presses
to produce the 2nd letter of the group or 4 quick presses to produce the third. A further press
reverts to the number.
If you make an error while entering a number or a letter the 'CLEAR' key can be used to erase
the last digit.
MAKING CALLS DIRECTLY
It is only necessary to enter the required number, which will be displayed, and when complete
press the 'DIAL' key. If the call is successful the red 'ISDN LINE' LED will illuminate and if
you have called a number with a matching codec, after a few seconds the 'CODEC OK' LED
will illuminate. If, for any reason the call is not successful, the display will show the reason for
failure. A list of possible responses is shown later.
MAKING SWITCH56 CALLS (Only available with our G722 or MPEG/G722 Codecs
)
Normally directly dialled numbers will be dialled as ISDN64 calls. If the system returns a non
compatible message to the equipment, the number will be immediately redialed as a switch56
call. If however you wish to force the equipment to make a switch56 call it is only necessary to
hold the 'DIAL' button for a few moments when the display will change to SWITCH56. Then
release the 'DIAL' button while this message is displayed. If you continue to hold the 'DIAL'
button you will notice that the display alternates between ISDN64 and SWITCH56
TO CLEAR THE CALL
To clear the call it is necessary to press and hold the 'CLEAR' button for about 2 seconds.
TO REDIAL THE LAST NUMBER
To redial the last number used it is only necessary to press the 'DIAL' button.
TO DIAL A NUMBER THAT HAS PREVIOUSLY BEEN STORED
Press the 'MEMORY' button.
You may directly enter the memory number (1-30) or use the '< and >' buttons to scroll through
the memories. The display will show the name in the memory if it has been stored or else the
number itself.
When the correct memory has been found, press the 'DIAL' button to make the call.
