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GSM and SIM card

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birdman0_o

Active Member
Google has been returning no useful hits.

I have found plenty of GSM modules, but when I try to find an appropriate sim card or information about that subject is when I start shooting blanks. Do you need a to pay a monthly fee with a cellphone company?

Enlighten me guys!
Thanks :)
 

RCinFLA

Well-Known Member
Do you think you're going to get free service?

The SIM card is 'sponored' by an operator.

SIM subsity lock is a phone SW feature. You can take a SIM card from a subsity locked phone (phone that only works on original operator) and put it in an unlocked phone.

If you have a GSM phone you can use the SIM card from your phone to test the GSM module you have.

Different countries have different business models on how service is sold.

In Europe you can buy airtime alacart and they give you a SIM card to go into a phone you already have. This would be a good option for you if offered in your area.

A GSM phone (or module) will not even attempt to camp on a system without a SIM card.
 
Last edited:

crutschow

Well-Known Member
Most Helpful Member
Do you need a to pay a monthly fee with a cellphone company?
Oddly enough the sole reason for the phone company to be in business is to make money, so no free lunch (or cell phone service)..
 
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