Our German suppliers have developed a stand alone SMS unit for sending alarm texts.
It uses the GM862-QUAD and this works plug and play all over the world other than here in Canada and possibly the USA!!
We have a Rogers GSM sim card that works tested in a standard cell phone but when placed in this module, the module recognises the SIM and the LED assigned for testing the SIM is stable as it should be.
The issue the GM862-QUAD is not registering onto the Rogers GSM network.
Is there a setting required for North American access that would be different from Europe or anywhere else?
I have spoken to Rogers and they see no reason why it should not work.
HELP. 