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any sim card except 3g sim cards they will not work properly
Well . There are two major mobile carriers. One is called China Mobile, and cell phones with their service usually use sim cards. And the other one is called China Unicom, and they are using CDMA which does not use sim cards.
the AT&T network, and the T-Mobile network both use SIM cards I know that Nextel and Sprint also use sim cards.
Cellcom in Wisconsin does not have sim cards, wish they did. I have heard that you can get a sim card from them but non of their phones have a spot for sim cards.
If both phones use the same service provider ( i.e. AT&T ) then yes the SIM cards should be interchangeable.
the AT&T network, and the T-Mobile network both use SIM cards I know that Nextel and Sprint also use sim cards.
ALL carriers use a SIM card !... The SIM card identifies the individual handset - and allows the service provider to charge the user for any calls, texts or downloaded data.
There is no sim card in Verizon, Sprint, or Alltel phones. The reason is that they operate on CDMA technology which does not require sim cards.
There are many mobile phones that do not require a SIM card, it depends on the service provider. Any phones from Sprint and Verizon do not use SIM cards.
No Alltel uses CDMA and sim cards is GSM
BlackBerry 8703e doesn't use sim cards. Only GSM and iDEN providers use sim cards. CDMA phones cannot be unlocked.Mazi Asikabulu
If the phones are from the same service provider then the sim cards will work in either phone. (i.e. Both phones were purchased from T-Mobile)