You can probably take a look at some AT commands to see what all is possible: http://www.etsi.org/deliver/etsi_gts/07/0707/05.00.00_60/gsmts_0707v050000p.pdf ht

You can probably take a look at some AT commands to see what all is possible: http://www.etsi.org/deliver/etsi_gts/07/0707/05.00.00_60/gsmts_0707v050000p.pdf http://www.etsi.org/deliver/etsi_gts/07/0707/05.00.00_60/gsm... As far as how easy, you just need the right hardware and software.