Anyone can help me?

I am interested in buying cell phone online. But I do not know the phone can be used compatible with our mobile service. I am from USA.

Tri band phone is ok? I am freshman of this. I hope anyone can help me. And please kindly let me know the difference among qual band, triband and quad band. Thanks

In the US, more important than the Band support is the protocol used. The most common protocols used in the US are CDMA (used by Sprint and VerizonWireless) and GSM (used by AT&T). If your carrier uses GSM, the you are probably good since (in the most cases) all you have to do is move the SIM card from an old phone to the new phone. If your carrier uses CDMA then things get iffy. Officially (as I currently understand it (according the the FCC)) one is suppose to be allowed to use any FCC approved phone (for the correct protocol) on another carrier. However, in many case different carriers do not support foreign phones.

Bands: When buying a phone for international use Bands can be important. Different countries use different frequency bands. In the US (I think) there are only two bands used. VZW tends to use the lower band and Sprint the upper, I do not know what AT&T uses. In general all of VZW and Sprint's phone sold now can use either bands as needed.

Hello.
Mobile telephony is without doubt one of the most explosive developments ever to have taken place in the telecommunications industry. I also want to buy Mobile online. So, Can anyone help me for that can it be used compatible with our mobile service? Please post it.

hi !!!


its really a informative post...


thanks for your information ...........





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