66251750-EN - V1.0 - 05/06/17
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4000 Series Vandal Resistant Digital GSM - Technical Manual
4000 Series Vandal Resistant Digital GSM Audio Intercom with Proximity
Troubleshooting
Unable to open the gate/door
from the telephone during a call
(DTMF tones not being recognised)
continued.
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
digital GSM and wait for a reply.
2. After receiving the reply send the SMS command 1111RBT then wait for the digital
GSM to reboot.
3. After the GSM intercom has rebooted test the door opening feature from the
telephone during a call.
If the rst solution still does not resolve the issue then try the following:
1. Send the following SMS command 1111AT1”AT#DTMFCFG=7,2300,1300”? to the
digital GSM and wait for a reply.
2. After receiving the reply send the SMS command 1111RBT then wait for the digital
GSM to reboot.
3. After the GSM intercom has rebooted test the door opening feature from the
telephone during a call.
If none of the solutions above 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.
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