It's the CDMA ones like Verizon and Sprint that are probably separate. The sim would be used for the LTE data, and CDMA for voice, and maybe text, if you had both signals available.
----- Original Message ----- From: DJ To: [email protected] Sent: Thursday, September 11, 2014 7:42 PM Subject: RE: With unlocked 6 or 6 + phones, will carrier (CDMA versus GSM) be an issue? GSM and LTE are not separate networks. GSM phones can use LTE data speeds if they support LTE signals, and if the carrier or tower offers it. DJ ------------------------------------------------------------------------------ From: [email protected] [mailto:[email protected]] On Behalf Of Anthony Vece Sent: Thursday, September 11, 2014 7:51 AM To: [email protected] Subject: Re: With unlocked 6 or 6 + phones, will carrier (CDMA versus GSM) be an issue? Yes! Sent from my iPhone 5s! On Sep 11, 2014, at 5:37 AM, Robin <[email protected]> wrote: Have you CHECKED whether or not you are on AT&T's GSM Network or AT&T's LTE Network? I wasn't debating its GSM Network capability. Are you capable to use AT&T's LTE Network? At 02:43 PM 9/10/2014, you wrote: Hi Robin & Everyone; I use my Verizon iPhone 5s on AT&T with absolutely no problem. Sent from my iPhone 5s! On Sep 10, 2014, at 5:40 PM, Robin <[email protected] > wrote: I believe you can take a VZW Apple iPhone to a GSM Network, but as I understand it, you will not be able to utilize its LTE Network ONLY its GSM Network. Only on VZW will you be able to use both CDMA & LTE, this is because VZW has to have a GSM option for its VZW customers, who travel outside the U.S. If I'm wrong, feel free to correct me because I'm not totally sure I am correct as it pertains to this query. At 02:18 PM 9/10/2014, you wrote: Hi, I have not seen any model numbers listed with radio frequencies yet, but if I use the current iPhone 5s as a starting point, there may be two physically different phones, one for Sprint, and one for ATT, Verizon, and T-Mobile. It very well may be the case that the new radio set supports all carriers in a single hardware handset. That said, although the radio frequencies may work, Verizon’s CDMA database will not support non Verizon iPhones. Thus, you cannot take an ATT iPhone and move it to Verizon. However, you can take a Verizon iPhone and move it to GSM carriers like ATT and T-Mobile. So, the Verizon iPhone can be moved to three out of the four major carriers, and would be the best choice. What I’ve said is valid on the 5s, but wait until the fine print is out on the 6 before making any decisions. Cheers. Âk Faith doesn’t give you the answers, it merely stops you from asking the questions. On Sep 10, 2014, at 4:09 PM, Kramlinger, Keith G., M.D. < [email protected]> wrote: Hi, I’m coming off contract with Verizon and will continue with them for a while, but hope to preserve my options of switching to a GSM carrier in the future. If I get an unlocked 6 or 6+,will I have to worry about whether the phone is CDMA or GSM? This issue has always confused me. Thanks in advance. Keith -- The following information is important for all members of the viphone list. All new members to the this list are moderated by default. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. The archives for this list can be searched at http://www.mail-archive.com/[email protected]/. --- You received this message because you are subscribed to the Google Groups "VIPhone" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email [email protected] . Visit this group at http://groups.google.com/group/viphone. For more options, visit https://groups.google.com/d/optout. -- The following information is important for all members of the viphone list. All new members to the this list are moderated by default. 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