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| US GSM T-Mobile, Cingular : Customer Service, GRPS, etc |
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| US GSM T-Mobile, Cingular : Customer Service, GRPS, etc |
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08-17-2008, 04:17 AM
| #1 (permalink) |
| Senior Treonaut   Join Date: Jul 2008 Location: Chicago My Treo: Treo 680 My Carrier: T-Mobile My OS: XP
Posts: 406 Thanks: 65
Thanked 97 Times in 52 Posts
 | SIM Cards from other countries I live just outside of Chicago, but do like to travel. I have been to Canada twice in the past three years and my wife and I are already looking at making annual visits to our neighbor to the north. One of the problems obvious is that we get hit with roaming rates from Tmobile when we are there since we are now on the Rogers network. My question is, how do SIM cards work? Can I buy any SIM card from another carrier, in this case Rogers, put it in my phone, and avoid roaming charges? If so, what is my phone number since it is associated with the SIM? Example Or, do I have to buy a pre-paid SIM card from Rogers, that will provide me with a Canadian phone number? Example
__________________  Lifetime Cubs fan record : 1,916 - 1,996 (.489) (06/23/84 - 09/21/08) Palm lllc > Sony Clie NX60 > Palm Z22 (sold, too small) > Treo 680 |
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08-17-2008, 10:55 AM
| #2 (permalink) |
| Senior Treonaut  Join Date: Mar 2008 Location: Body in San Diego; Heart in NYC My Treo: Treo 680 My Carrier: T-Mobile My OS: XP
Posts: 472 Thanks: 168
Thanked 80 Times in 61 Posts
| You could do either one. I'd call Rogers, first. As far as a different phone number; your T-Mobile / 680 has a call forwarding feature. Get the new SIM and before you take your "real" one out, set all calls to be forwarded to the new SIM's phone number, ay?
__________________   Palm V > Treo 650; eventually modded ROM > Treo 680 > World Domination
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| The Following 2 Users Say Thank You to Pete Lorenz For This Useful Post: | irishgoaltender22 (08-17-2008), TazUk (08-18-2008) |
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08-17-2008, 12:11 PM
| #3 (permalink) |
| Senior Treonaut Join Date: Jul 2008 Location: Chicago My Treo: Treo 680 My Carrier: T-Mobile My OS: XP
Posts: 406 Thanks: 65
Thanked 97 Times in 52 Posts
| The SIM card has your phone number stored on it, so that is what the network recognized when a number is entered... I would think if I bought a SIM off eBay, like that second example, that it would be one with no number attached to it.. or are you saying that the 680 has a feature that would forward all calls to my Tmobile SIM to this new SIM so in a way it serves as its own network? I thought SIMs need to be activated, which includes assigning a number to them. That is why I am unsure of the second one.
__________________ Lifetime Cubs fan record : 1,916 - 1,996 (.489) (06/23/84 - 09/21/08) Palm lllc > Sony Clie NX60 > Palm Z22 (sold, too small) > Treo 680 |
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08-17-2008, 12:35 PM
| #4 (permalink) |
| Senior Treonaut Join Date: Mar 2008 Location: Body in San Diego; Heart in NYC My Treo: Treo 680 My Carrier: T-Mobile My OS: XP
Posts: 472 Thanks: 168
Thanked 80 Times in 61 Posts
| If I understand things (no guarantee of that), if I walk into a Wal-Mart and buy a prepaid SIM, there is a phone # assigned to it (otherwise, no one could call me). Once I know that #, I can then forward my calls to it. ....unless...... we can only forward calls to another T-Mobile #.......... I'll get back to you.
__________________ Palm V > Treo 650; eventually modded ROM > Treo 680 > World Domination
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08-17-2008, 09:34 PM
| #5 (permalink) |
| Senior Treonaut Join Date: Jul 2008 Location: Chicago My Treo: Treo 680 My Carrier: T-Mobile My OS: XP
Posts: 406 Thanks: 65
Thanked 97 Times in 52 Posts
| Your understanding and mine appear to be the same. The eBay SIM I was looking at was a SIM someone got with a phone they bought, but to my knowledge it had no number attached to it.
__________________ Lifetime Cubs fan record : 1,916 - 1,996 (.489) (06/23/84 - 09/21/08) Palm lllc > Sony Clie NX60 > Palm Z22 (sold, too small) > Treo 680 |
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08-18-2008, 03:15 PM
| #6 (permalink) |
| Mostly harmless  Join Date: Aug 2006 Location: Kent, UK My Treo: Treo 750v My Carrier: Vodaphone My OS: XP
Posts: 3,793 Thanks: 169
Thanked 442 Times in 341 Posts
| If it's an unregistered SIM, which is sounds like it is, then you're right it will not have a number associated with it. A SIM needs to be registered before it can be used. Prepaid SIM's come pre-registered, contract SIM's get registered as part of the contract setup process.
__________________ Treo 180 > Treo 270 > Treo 650 > Treo 750v (Running WM6)  + Treo 500v + Treo Pro  "Going to church no more makes you a christian than sleeping in your garage makes you a car." Garrison Keillor |
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08-18-2008, 05:41 PM
| #7 (permalink) |
| Senior Treonaut Join Date: Jul 2008 Location: Chicago My Treo: Treo 680 My Carrier: T-Mobile My OS: XP
Posts: 406 Thanks: 65
Thanked 97 Times in 52 Posts
| The seller for the eBay SIM responded by saying I would have to take the SIM to a Rogers store and have them activate it and register it, thus giving it a number... once I figure in the fees for this, plus minutes and the time it would take, option 1 for $59 pre-registered seems like a better choice. Thanks for the responses.
__________________ Lifetime Cubs fan record : 1,916 - 1,996 (.489) (06/23/84 - 09/21/08) Palm lllc > Sony Clie NX60 > Palm Z22 (sold, too small) > Treo 680 |
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