Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Actually now that I think about it there might be a problem with apps on CDMA networks. Here's a hypothetical example:

You're in Twitter for iPhone and you post a tweet. As it is sending the tweet to Twitter's server you get a phone call. Since a CDMA iPhone couldn't do simultaneous voice and data the connection to the Twitter server would be severed before the tweet is sent.

This could be problematic for many apps unless developers adjust their apps to handle this type of ad hoc connection loss.

It could also be problematic to the user.

I will often send a large email with attachments and then phone the contact while it is sending to discuss the email.

If I had a CDMA iPhone I would have to wait for the email to send and then make the call. It's not a big deal, but it's something that users would have to consciously be aware of when using their device. And as I pointed out earlier, some apps would handle the interruptions better than others. While mail app has an outbox/drafts folder, other apps do not.

I'm pretty sure that there is a way to do simultaneous voice and data on a CDMA network, it's just up to the phone manufacturers to implement it. So I'm pretty sure Apple either implemented that or made the required changes to keep it from being a problem.
 
I'm pretty sure that there is a way to do simultaneous voice and data on a CDMA network, it's just up to the phone manufacturers to implement it. So I'm pretty sure Apple either implemented that or made the required changes to keep it from being a problem.

As I understand it there is no way to do this. Can you provide any links that suggest how this might be accomplished? All of the coverage (from legitimate websites - not news media sites like WSJ) that I have read have said that it is not possible to do simultaneous voice and data on CDMA.
 
Simultaneous voice and video is now possible on a CDMA standards network. Now, that probably requires an upgrade to hardware of some sort.

http://www.evdoinfo.com/content/view/2861/64/

There is a lot of posts questioning fragmentation of sorts happening within Apple as far as phone models, and iPhone 4 vs 5, etc. Some things that may make a LTE phone possible:

VZW has launched in 38 markets, and 60 airports. Interesting that a launch of that magnitude on a technology would happen without much backing. Simultaneous voice and video would be easily accomplished with an LTE secondary network.
 

Thanks for sharing.

So as I understand it, simultaneous voice and data will depend both on Verizon and on Apple to implement different pieces of technology that will work together to accomplish something comparable to GSM voice-data capabilities.

I suppose that if the iPhone were coming to Verizon they would probably partner to accomplish this. I really can't see Apple releasing a CDMA iPhone by choice that is in any way crippled compared with its GSM counterpart.
 
Actually now that I think about it there might be a problem with apps on CDMA networks. Here's a hypothetical example:

You're in Twitter for iPhone and you post a tweet. As it is sending the tweet to Twitter's server you get a phone call. Since a CDMA iPhone couldn't do simultaneous voice and data the connection to the Twitter server would be severed before the tweet is sent.

This could be problematic for many apps unless developers adjust their apps to handle this type of ad hoc connection loss.

It could also be problematic to the user.

I will often send a large email with attachments and then phone the contact while it is sending to discuss the email.

If I had a CDMA iPhone I would have to wait for the email to send and then make the call. It's not a big deal, but it's something that users would have to consciously be aware of when using their device. And as I pointed out earlier, some apps would handle the interruptions better than others. While mail app has an outbox/drafts folder, other apps do not.

what about android users who end up in these situations?

don't you think iOS is capable of pausing / resuming transfers upon the interruption of your data connection?
I don't think apps are specifically written so your tweets don't get lost when you're riding the subway :/
 
Some things that may make a LTE phone possible:

VZW has launched in 38 markets, and 60 airports. Interesting that a launch of that magnitude on a technology would happen without much backing. Simultaneous voice and video would be easily accomplished with an LTE secondary network.

Even if Apple does release the next iPhone as LTE the verizon version needs CDMA as the LTE network is going to be very small for the next year or two. What I'm expecting is this year will be a similar upgrade to the iPhone 3gs probably call it the iPhone 4s, and next year we will get the iPhone 5 which will be the first LTE model.
 
what about android users who end up in these situations?

don't you think iOS is capable of pausing / resuming transfers upon the interruption of your data connection?
I don't think apps are specifically written so your tweets don't get lost when you're riding the subway :/

Not without significant modification to applications and/or iOS, no.
 
Not without significant modification to applications and/or iOS, no.

i just think your scenarios are very 'constructed' ... how many seconds does it take for a tweet to go through?
also, as i said ... there's plenty of reasons that might make you lose your data connection for a moment and there are plenty of CDMA Smartphones around.
I don't think this has been a big deal until now, neither will it be, should the CDMA iPhone not allow for simultaneous voice and data
 
iOS will have no trouble handling non-simultaneous voice and data. It can do that now. Flip the 3G switch to off on your phone. AT&T's 2G EDGE doesn't do simultaneous data and voice either and the iPhone doesn't seem to explode.
This isn't really a issue insofar as to what app authors have to consider.
 
Actually now that I think about it there might be a problem with apps on CDMA networks. Here's a hypothetical example:

You're in Twitter for iPhone and you post a tweet. As it is sending the tweet to Twitter's server you get a phone call. Since a CDMA iPhone couldn't do simultaneous voice and data the connection to the Twitter server would be severed before the tweet is sent.

This could be problematic for many apps unless developers adjust their apps to handle this type of ad hoc connection loss.

It could also be problematic to the user.

I will often send a large email with attachments and then phone the contact while it is sending to discuss the email.

If I had a CDMA iPhone I would have to wait for the email to send and then make the call. It's not a big deal, but it's something that users would have to consciously be aware of when using their device. And as I pointed out earlier, some apps would handle the interruptions better than others. While mail app has an outbox/drafts folder, other apps do not.

The iPhone doesn't do voice/data at the same time on Edge and it works just fine now.
 
Actually now that I think about it there might be a problem with apps on CDMA networks. Here's a hypothetical example:

You're in Twitter for iPhone and you post a tweet. As it is sending the tweet to Twitter's server you get a phone call. Since a CDMA iPhone couldn't do simultaneous voice and data the connection to the Twitter server would be severed before the tweet is sent.

This could be problematic for many apps unless developers adjust their apps to handle this type of ad hoc connection loss.

It could also be problematic to the user.

I will often send a large email with attachments and then phone the contact while it is sending to discuss the email.

If I had a CDMA iPhone I would have to wait for the email to send and then make the call. It's not a big deal, but it's something that users would have to consciously be aware of when using their device. And as I pointed out earlier, some apps would handle the interruptions better than others. While mail app has an outbox/drafts folder, other apps do not.

Its no different then a AT&T iPhone user walking down the street talking on the phone when oooops... your call is dropped.
 
I'm sure there will be a work around.... However, that is a huge problem with CDMA networks. Ofcourse AT&T drops my call almost every time so pick your evil.
 

... yeah ... let's not even try to make logical conclusions and just wait and see. :/

Honestly, there's close to no reason for a CDMA iPhone to have different software, let alone pre-installed apps, than its GSM equivalent
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.