GM862 Hangup

I’m having a trouble with GM862.

The thing is I have them installed on various tracking and control equipment inside some trucks. The problem is that after a few weeks of 24/7 operations they start transmitting data. When we were at the prototype stage we though it was a prototype problem and believed it was corrected on our final version, but as the last week the problem began to happen in various trucks.

When i checked what happened the module seems confused, I mean everything is error. say

AT#GPRS=0

ERROR

ATD0412206090

ERROR

Strange but the only solution for this was to unplug the equipment for a few minutes and everything start working normally.

How can I do this? I mean I don’t want to visit every truck monthly to just unplug and plug back the equipment again.

I’ve read the there was the unconditionally shutdown (pulling low the reset pin for a while) But dunno if this will solve the problem

Any idea?

That will probably work, but it shouldn’t be necessary. I’d contact Telit about it, I’ve found them quite helpful with technical queries.

Leon