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7
Programming
TIP
: The GSM unit programming is by sending SMS text messages to the unit from a phone.
Step 1: Check Reception
TIP:
If reception levels are low, take action now! Either increase the height of the antenna to
improve reception or request a higher gain antenna from your distributor or change to another
network which may have better coverage.
Step 2: Programming dial out numbers
Programing text messages must start with a pass code string, followed by a command, followed
by data, and each command is separated in the SMS by #.
To begin, program the unit to dial numbers when the call button is pressed. This module will dial
up to 3 telephone numbers in sequence.
*12*1234#
11
0987654321
#
Pass code
Function code
Data
TIP…
11
= Telephone number 1.
12
= Telephone number 2.
13
= Telephone number 3.
E.g.
*12*1234#
11
firstnumber
#
12
secondnumber
#
13
thirdnumber
#
Send the SMS
*20#
as shown, to the SIM card
number of the intercom. The unit should reply with a
reception level between 1 and 31.
*20#
Signal
level = 19
1-12
Poor
13-20
Medium
21-31
Good
Note: Reception levels below 14 can give problems with the
relay operation, and poor quality audio, or no audio coming
from the microphone on the intercom (the person on the
phone cannot hear anything), or buzz on the loud speaker.
*12*1234#
11
0987654
321
#
11
098765
4321
OK
The phone image shows an example of a number being
stored and the reply sent by the unit to confirm OK.
Up to 3 numbers can be sent in a single SMS. The pass
code only needs entered at the beginning of each message,
and then each new command string is separated by #.
