Dual Sim Card 3G for Iphone
Have anybody heard about that Swiss company Simore that provide a dual sim adapter for iphone
Their video with Iphone here sounds good but I can't see if 3G ok or not,
can see a video in youtube id h-nZbHgzUbQ
Any feeds appreciate....
- 09-04-2009, 09:20 AM #2
- 09-05-2009, 01:27 PM #4
However, the signaling and the protocols are not the only issues. The US and Europe also use different radio frequencies, two each, layer 1. Most GSM phones, including the iPhone, but not all, support all four frequencies ("World" phones).
The GSM agreement requires that all GSM operators support any GSM phone that supports their frequency and that shows up on their network. Therefore, if I bring my iPhone to Europe, Orange will connect me but they will bill AT&T for all service at a rate agreed upon between them.
When I show up on Orange or O2, they send a registration message to AT&T that says "I've got him, is he your legitimate use and will you pay us for his calls. If so send all calls for him to us."
In AT&T's case, I must have agreed with them in advance of going to Europe. Similarly, if you bring your iPhone to the US, either T-Mo or AT&T will serivce you and charge your provider.
So far so good. However, here in the US we have a scheme under which one may buy a phone form a carrier at a price subsidized by the carrier, in return for signing a contract of specified duration with the carrier. In this case, the phone will use a SIM from that carrier and the phone will be "locked" such that it will only recognize a SIM from that carrier. My understanding is that most iPhones sold in Europe are unlocked and will use whatever SIM is placed in them Thus, when you bring your iPhone to the US, you may use the SIM that you brought with you, or a SIM from either T+mo or AT&T. However, when I take my phone to Europe I may use only my AT&T SIM.
For most of the phones that AT&T sells they will "unlock" the phone at the end of the contract or, at their discretion, upon request. AFAIK, they have not unlocked any iPhones. Of course, since the "lock" is software, there are hacks.
Therefore, with "dual SIM" capability when you come here, you can continue to use your European SIM and also use a US SIM. However, since my phone is locked to AT&T, a dual SIM capability will not help me.
Another way to think of it is that if one can switch SIMs, the dual SIM capability is useful. My understanding is that modt iPhones sold in Europe are unlocked and will use whatever SIM is place in them However, if one cannot switch SIMs (Most AT&T customers), then "dual SIM" is not useful.
Therefore, the answer to the question that started the thread is that a "dual SIM" capability for the iPhone will work well with European purchased iPhones but only "unlocked" iPhones purchased in the US.
OUAOU, thank you whmurray for this long and very usefull explanation
FYI, europe works like USA, most of mobile phones including Iphone are basically SIM Locked by the network operator (Orange, Vodafone), they pay a part of the phone against a 12-24 month subscription. To unsimlock the phone, in most of case you do it yourself or in a shop (20-30€ to unsimlock, can be more for latest mobiles) or wait 6+ month subscription then the operator is obliged to provide you with the unsimlock code for free.
It is then possible to mix a Orange & ATT SIM card for coming in the US, that's my goal
Is there easy way to get a prepaid card with internet illimited connections to internet in the US and how much cost such SIM??
- 09-07-2009, 11:14 AM #6
- 09-10-2009, 08:49 AM #8
- 09-11-2009, 05:02 PM #9iPhone Intermediate
- 154 Posts
USB Fever has announced an iPhone battery pack which also features a dual SIM adapter...This is a very innovative design, it will give tou a DUAL SIM for your iPhone 3G / iPhone 3Gs as well as a battery with an internal USB Cable with controller for Pure Charging or Charge + HotSync for your iPhone 3G / iPhone 3Gs...
- 09-18-2009, 09:47 PM #10
- 09-19-2009, 11:42 AM #11
- 09-21-2009, 11:44 PM #12iPhone Beginner
- 97 Posts
yeah! Tmobile is your best bet. you can get a prepaid card for $6.99 with 10 minutes. here is the thing, you need a regular phone(like a RAZOR) to activate the card(just so their system registers that IMEI) then call to add the $25 unlimited data plan(i have not tried their T-zone plan that is $9.99 but i hear it does not work anymore with the iPhone), then get a refill card and that`s it. if you get the $100 you get more minutes, and they expire 1 year from the purchased day, so if you travel and stuff this is the best way.
Last edited by DJBBOX; 09-21-2009 at 11:47 PM.
- 10-03-2009, 11:30 AM #14
- 10-06-2009, 04:34 PM #15
- 06-23-2010, 10:08 PM #17
- 09-08-2010, 09:19 AM #18
- 09-08-2010, 01:48 PM #19
- 09-08-2010, 02:12 PM #20
- 08-17-2012, 08:03 AM #21iPhone Newbie
- 11 Posts
: Dual Sim Card 3G for Iphone
Pay-as-you-go consumers need a high degree of flexibility and control with their mobile finances, and with 3's pay-as-you-go SIM card, no other PAYG service can match the flexibility provided by 3. The SIM card itself is free and will grant the user access to Skype and Windows Live Messenger at no extra cost -provided that you are using a mobile phone that is not sim locked and is 3G compatible.
Last edited by isabellaadamz; 09-21-2012 at 09:55 AM.
- 08-17-2012, 08:17 AM #22