May I ask is GSM sim908 need registration?

[JJ33]

Hi all,

I newbie of arduino and gsm/gps/gprs.. May i ask why we have to register GSM sim908 to network? What is function, and if I do not do so, what will happen? Thanks reply

JJ

 

[embRTS]

It will automatically register to the network once you connect the SIM card and power it up

You can check using the following AT command

AT+CREG? // to check network reg.

AT+COPS? // to see which operator of Sim card you are using like for example - Vodafone