...is far from dead. For many wireless operators, especially those that have built their networks using the global standardGSM, the current 3G wireless technology called HSPA still has some legs left. And while many carriers are planning their...
http://news.cnet.com/8301-30686_3-10404860-266.html
...and modem to make VoIP calls. 5.0 Features of Dual mode Phone 5.1 GSM The dual mode phone will support standardGSM call control functions. It will also support other GSM features like SMS, GPRS and MMS, etc. The call control features...
http://canarie.co.in/dualmodephone.pdf