66250675-EN - V1.0 - 05/09/17
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4000 Series Vandal Resistant GSM - Technical Manual
4000 Series Vandal Resistant GSM Audio Intercom with Proximity Facility
ERROR message returned in SMS
when programming or no SMS
returned at all even though a ? was
included at the end of the message
sent.
Check over the message sent again and compare it with the examples in this manual.
Common errors include:
1. Using two apostrophe marks side by side instead of “. Note that these look the
same in the message. An easy way to see if this is the problem is to move the cursor
along in the message and if the cursor can get between the two “ then it is not the
correct character used.
2. Lower case letters instead of upper case. For example using stn when STN should be used.
Unable to open the gate/door from
the telephone during a call (DTMF
tones not being recognised)
If the DTMF tone to release the gate/door (or other DTMF tones shown in the rst user
command on page 50) does not work then check to see if the ED# funtion has been enabled:
1. Send the following SMS command 1111ED#? to the GSM intercom and wait for a
reply conrming the status of this function.
2. Note: If the 1111EDZ function (also see notes on page 45) is set to 01 (enabled) then
when answering the call it will be necessary to rst press 0 to accept the call before 3
can be used to operate the gate/door.
Further notes on how to eectively use this function and on the setup of this function can
be found on page 45.
If the DTMF tones are not working reliably then try the following adjustments:
1. Send the following SMS command 1111AT1”AT#DTMFCFG=8,2500,1500”? to the
GSM intercom and wait for a reply.
2. After receiving the reply send the SMS command 1111RBT then wait for the GSM
intercom to reboot.
3. After the GSM intercom has rebooted test the door opening feature from the
telephone during a call.
If the option above doesn’t resolve the issue then try the following:
1. Send the following SMS command 1111AT1”AT#DTMFCFG=7,2300,1300”? to the
GSM intercom and wait for a reply.
2. After receiving the reply send the SMS command 1111RBT then wait for the GSM
intercom to reboot.
3. After the GSM intercom has rebooted test the door opening feature from the
telephone during a call.
If neither of the above solutions resolve the problem then please contact Videx technical
on tel: 0191 224 3174 for further assistance. For overseas customers contact Videx
customer support on tel: (+39) 0734 631 699 for further assistance.
Troubleshooting
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