GSM module
â–¶ How to fix
Restart the system using the following procedure: Exit the program. Switch off the power.Press the On/Off button on RTI unit for at least four seconds. (An acoustic signal will be heard.)Wait for at least five seconds. Then switch on the power and start the RTI unit.If this does not help, renew the GSM unit. The GSM unit must be renewed by the supplier.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
The GSM telephone is not working. The text "No service" is displayed in the telephone view.
Possible cause
Interference or malfunction in the GSM unit.