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Cellular Phone Forum / Providers / Cingular / June 2005Any down side to an UNlocked Nokia 6340i GAIT phone?
I'm considering buying a new 6340i off of Ebay, to replace the well-used one that I have now. I called Cingular CS to verify there would be no problem with switching my existing SIM to the new phone and that Cingular would also allow a new phone to have all the capabilities of my existing phone (TDMA, Analog, i.e GAIT capabilities). She said this would not be a problem, just switch the SIM and call in your ESN from the new phone and the switch would be made without problem. However, she also said make sure I don't get an UNlocked phone, because I could have billing problems if the phone were to roam onto another carrier that was not an authorized roaming partner. Now my understanding is completely different from what she said and I discussed it with her for several minutes, saying the SIM would control the GSM side of the phone and the IRDB should control the TDMA portion of the phone, etc. I have the option of buying a Cingular locked 6340i or an unlocked version from different vendors (of course the prices are not necessarily the same). So now I'm asking for confirmation from someone knowledgeable on this. Is there any potential problem with using an unlocked 6340i with respect to inadvertent roaming on either GSM, TDMA, or Analog systems, that are not authorized roaming partners, and thus be billed for minutes not included in the existing NATION plan? My current plan on the current 6340i from Cingular never incurs a roaming charge. TIA SM The CSR was half right. the first part about calling to do the ESN change is important. The part about an unlocked phone was bunk. A locked phone will only accept the original providers SIM, an unlocked phone will accept any SIM. The SIM, as you noted, holds all the system registration information. jim > I'm considering buying a new 6340i off of Ebay, to replace the > well-used one that I have now. I called Cingular CS to verify there [quoted text clipped - 24 lines] > > SM >The CSR was half right. the first part about calling to do the ESN change is >important. Really? I've switched my SIMs from phone to phone multiple times without ever informing Cingular and never had a problem.  SignatureProud to be a wreckless driver! > >The CSR was half right. the first part about calling to do the ESN change is > >important. [quoted text clipped - 3 lines] > I've switched my SIMs from phone to phone multiple times without ever > informing Cingular and never had a problem. The reason it worked is because either A) you were lucky or B) your phone has never switched to TDMA mode. If the phone switches to TDMA and the ESN is incorrect, you will be denied service. If it stays in GSM mode, there will be no issue. jim wrote (6/5/2005 9:31 PM): >>>The CSR was half right. the first part about calling to do the ESN change > [quoted text clipped - 11 lines] > If the phone switches to TDMA and the ESN is incorrect, you will be denied > service. If it stays in GSM mode, there will be no issue. Having the correct ESN in Cingular's records is essential, but it is absolutely unrelated to whether or not the phone is locked or unlocked. SignatureRJW I can think of no down side to an unlocked phone. You can download a free unlock caculator from http://unlock.nokiafree.org/download.php if you buy the locked one and want to unlock it. >>The CSR was half right. the first part about calling to do the ESN change >>is [quoted text clipped - 4 lines] > I've switched my SIMs from phone to phone multiple times without ever > informing Cingular and never had a problem. Re-read what was said. The ESN (not the IMEI) number is necessary for the TDMA side of the phone to work properly. Whatdayathink? > However, she also said make sure I don't > get an > UNlocked phone, because I could have billing problems if the phone > were to roam onto another carrier that was not an authorized roaming > partner. "Locking" has nothing at all to do with roaming. A "locked" phone simply means that you cannot put another carriers SIM in the phone (ie: T-Mobile). Her caution was from misunderstanding of what she was talking about on her part. |
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