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  1.    #1  
    i'm traveling for the first time overseas with my 680. i was looking for suggestions as to what has worked best: getting a local country sim card and using it or just using my t-mobile sim and local los angeles phone number. i'll be going to paris then jeruselum

    thanks

    alan
  2. #2  
    If you get a local country sim card you'll save lots of money but you won't have any data connection, at least in my experience which has been confirmed by others here. It is possible that is changing, but I have not heard about it yet. If you use TMO overseas, it works fine, but is fairly expensive. The advantages of course are if you use your TMO card, others can still call you at that number, but again it is expensive. If you get a local card, your friends will have to make an overseas call (but that is inevitably cheaper for them than what you would have to pay on TMO), but the other advantage is that all incoming calls are free. So in a way you save twice--once because they pay less to call you than it would be if you called them via TMO, and twice because you pay nothing at all on your end.
  3. #3  
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  4. #4  
    Regarding using a local SIM, I did so recently with my unlocked 680 in Vietnam, the local SIM cost $4 with about 30 minutes air time and some "mysterious" amount of incoming data. Each day I was able to receive a nominal number of e-mails but if I tried web browsing, the device would soon refuse to connect. Each night at midnight, I was once again able to receive limited data - so some counter was being re-set. Unfortunately, even with excellent tech and translation assistance, we never were able to learn the SMTP server name so outgoing email was not possible with the local SIM. By swapping to my ATT/Cingular SIM, I could send email, at .02 per KB, inconvenient but neither terrible nor expensive. This data restriction may be unique to Vinaphone in Vietnam.

    It appears that some overseas service providers have GPRS service while others do not. You can test this with your US SIM by switching networks and watching for the data symbol to appear. Then buy a local SIM from that service provider. Also, I am told that some Cingular SIMs restrict your selection of service providers to those with whom they have contracts - if that provider does not have GPRS, no data with your US based SIM. T Mo may be more lenient regarding selecting networks. Best to find a tech savy local and drag him/her along when you shop for a local SIM. Good luck.
  5.    #5  
    how about texting? if i use my t-mobile card will texting back and forth to the US work the same way?

    how about within the various countries? in other words...i have a friend from the US that will be in paris about the same time. will we be able to text each other?

    alan
  6. #6  
    Texting is no problem.
  7. simba's Avatar
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    #7  
    Glad someone brought this up - how 'bout traveling to Beijing and the Philippines? Also buy local SIMs? I read somewhere about getting those 5 sim card and reader or something like that so that I can copy my TMO card to it. Then it would be easier to switch phone numbers, of course not at the same time. I'm also on TMO.

    This is the first time I've ever bought an unlock GSM phone. I'll be traveling in about 2 months.
    Handspring Visor 2mb; Visor Prism; Palm i705; Tungsten2; VZW Treo650; TMO Crimson Treo680; iPhone 3g on TMO edge
  8. #8  
    You can usually get SIM cards almost anywhere, including the airport. Those are always prepaid cards, and so don't include any data usage, in my experience, and I'm not sure there are any prepaid plans anywhere with data usage possible, but my experience is limited to western Europe.

    I tried the multiple card copier with TMO and it failed. I was told by multiple sources that they only work with a much more primitive card format and the new encryption simply cannot be cracked by those systems, and I think that is probably correct.
  9. simba's Avatar
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    #9  
    Quote Originally Posted by mdavis View Post
    You can usually get SIM cards almost anywhere, including the airport. Those are always prepaid cards, and so don't include any data usage, in my experience, and I'm not sure there are any prepaid plans anywhere with data usage possible, but my experience is limited to western Europe.

    I tried the multiple card copier with TMO and it failed. I was told by multiple sources that they only work with a much more primitive card format and the new encryption simply cannot be cracked by those systems, and I think that is probably correct.
    Thanks, mdavis, for the info. Question - what do you mean primitive card format? Do you have a link for this? Again, thanks.
    Handspring Visor 2mb; Visor Prism; Palm i705; Tungsten2; VZW Treo650; TMO Crimson Treo680; iPhone 3g on TMO edge
  10. #10  
    Well, this will all be technically wrong but maybe substantively close. Apparently the first SIM cards were something like version 1, and they could be cracked, and thus copied. The newer version 2 cards appear to be uncrackable at least by the means available to us. The manufacturers all say that they will work with version 1, but not version 2, and that a large percentage of cards are version 1, but that appears wrong. Several people have told me and posted that they haven't made the version 1 cards in at least five years so nothing available to you and me is really useable.
  11. simba's Avatar
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    #11  
    Quote Originally Posted by mdavis View Post
    Well, this will all be technically wrong but maybe substantively close. Apparently the first SIM cards were something like version 1, and they could be cracked, and thus copied. The newer version 2 cards appear to be uncrackable at least by the means available to us. The manufacturers all say that they will work with version 1, but not version 2, and that a large percentage of cards are version 1, but that appears wrong. Several people have told me and posted that they haven't made the version 1 cards in at least five years so nothing available to you and me is really useable.
    Ah, this is sounding familiar. When I do get into Beijing and Manila, I'll check with the local geeks and see what they say. Again, thanks for the info.
    Handspring Visor 2mb; Visor Prism; Palm i705; Tungsten2; VZW Treo650; TMO Crimson Treo680; iPhone 3g on TMO edge

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