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Old 09-20-2005, 02:27 PM   #1 (permalink)
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Are the 7100T and 7100g phones interchangeable if unlocked?

I am using a 7100T on t-mobile and the service is really poor. My associate's 7100g in Cingular indicates more than 10 dbm signal strength.

If I change to Cingular can I just put their SIM card into the unlocked 7100t?

ALSO - I noticed that the phones are a lightly different shape. Does anyone know if the insides are identical or are there possible differences in the antenna?

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Old 09-20-2005, 04:11 PM   #2 (permalink)
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The phone will work fine, if unlocked, on Cingular. Cingular has 850MHz towers and if you connect to one of them, your indoor reception will be better -- the range is shorter on the lower frequency, but building penetration is better.
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Old 09-21-2005, 07:50 AM   #3 (permalink)
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Yeah, once your 7100t is unlocked. You should be able to insert the sim card from your Cingular phone and it should work properly.
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Old 09-21-2005, 08:03 AM   #4 (permalink)
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But you will have to pay more for the monthly data service.

I went with Tmo but am returning my 7100 due to poor service indoors, but I thought Cingular in my NY area pigybacked Tmobile's towers, so would there still be 850mhz service for Cingular?

I would probably switch to Cingular if that was the case, otherwise it is back to Nextel's 7520.
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