About Unlocked 3G Data Card USB MODEM

A Locked Data Card Can Access Only One ISP (Modem Distributed ISP ).
For Example if you buy data card from bsnl . You can use only BSNL sim in particular data card .


Advantages Of Locked Modem

* Some Time in Bulk Advanced Payment you may get Free data card .
*Get Full Customer Support

Disadvantages Of Locked Modem

*Never Switch ISP
*less choice

Locked VS Unlocked

In an unlocked (purchase outside data card )you will get freedom to switch isp. Also you Can select wide range of Data card eg . HSDPA HSUPA 3.6mbps Down link 7.2mbps Down link 24mbps down link e.t.c


So i prefer Buy data card outside Never From Your ISP :)