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CDMA is a different timing slice and has different chip coding and different antenna structure (not sure on the antenna structuring). CDMA actually only send signal in slices per second. Its got most to do with that.

However, I don't have a clue why they are not interchangeable.

I will say this too. If iPhone to Verizon is true, this will be the coup de-gracie.

Short T and go VZW.

Hardware-wise, the chips are interchangeable. The RAZR came out on all carriers several years ago.

The reason they choose not to is because you have to create a new board design for CDMA carriers and have a separate manufacturing line. Apple would rather not do that. My guess is that they wanted to wait to make one phone that worked for both AT&T and Verizon using the LTE standard, but that's probably not going to be ready until 2012 at the earliest and Android is quickly becoming a popular #2 in smartphone sales.

In terms of importance: Making sure Android doesn't grab all market share > only having to design one phone each year.
 
Why would Apple make a CDMA phone? it cant do any multimedia functions that the iPhone is touted for.
Actually a network having CDMA in todays time is a joke.
I guess as they say "Only in America"
 
I'm hoping that the 4th gen iphone that is probably launching at the WWDC will be a hybrid CDMA and GSM phone :D . When Gizmodo tore the prototype apart wasn't there metal coverings on the chips? So how do you know whats under there? Hmmmmm.......I wonder
 
Talk and surf at the same time?

On Verizon I thought you can't surf AND talk at the same time...! That would be a turn off for the iPhone...
 
I can see the commercial now. . .

"You can't surf the web at the same time. . . but It's on the nations better network" iPhone HD Now on Verizon

So lame. . . I don't buy these Verizon rumors simply because the iPhone, in America, doesn't need Verizon to still be successful.

GIVE IT UP!
Why would Apple waste money to produce a CDMA phone JUST FOR ONE CARRIER? Not going to happen. Give it a rest already.
 
I suspect they have til June 2012 to see a Verizon iPhone assuming ATT doesn't extend its contract and Apple has a buyout clause. We are also assuming that a Verizon iPhone = more money than ATT is giving Apple currently.

I'm also still not convinced there is a huge group of people waiting on Verizon for the past 3yrs for an iphone.
 
Why would Apple waste money to produce a CDMA phone JUST FOR ONE CARRIER?
It wouldn't be for one carrier. CDMA is used in some other major markets, notably China, Japan, and Korea.

That said, I still don't believe that the iPhone is coming to Verizon this year.
 
I am with you on this one, too bad my step-dad is an Exec for AT&T but oh well serves him right. We should have already had tethering and a fixed network but my "inside" source says why waste money on upgrades when we can take it right out of the consumers and make a bigger profit. He also thinks that when AT&T crashes which it obviously will the wonderful OBAMA Stimulus that doesn't need to be repaid will cover them. Gotta love Obama and failing companies.

You just made this all up.
 
The reason they choose not to is because you have to create a new board design for CDMA carriers and have a separate manufacturing line. Apple would rather not do that. My guess is that they wanted to wait to make one phone that worked for both AT&T and Verizon using the LTE standard, but that's probably not going to be ready until 2012 at the earliest and Android is quickly becoming a popular #2 in smartphone sales.

In terms of importance: Making sure Android doesn't grab all market share > only having to design one phone each year.

I think you've nailed it here. Everything about this coming phone update seems designed to put a stake in the heart of any advantages Android may have over the iPhone. The network is the biggest factor, though, so how is it possible they would leave this stone unturned? I don't think they can afford to, and I don't think they will. The issue will likely just be one of timing.

I do find it very interesting that the Android Evo is going to allow two way video chat over the Sprint cell network, though. I'm sure any AT&T phone will be limited to WiFi only videochat - so won't Apple's offering already look stale by comparison? Or is Apple counting on video-chatting to desktops being the primary usage, so folks won't care as much?

I don't know what the possible solution they have in mind will be, but I find it awful hard to believe that Apple would let the iPhone be bested in what will no doubt be an extremely hyped feature.

It's starting to look like Apple would be downright irresponsible by not either introducing 1) an LTE Verizon phone, or 2) a WiMax iPhone on Sprint, in 2010.
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 3_1_3 like Mac OS X; en-us) AppleWebKit/528.18 (KHTML, like Gecko) Version/4.0 Mobile/7E18 Safari/528.16)

Thinner with a faster proccessor? Um... Doesn't most tech follow the smaller and faster route? That sounds like a prediction my grandmother could make.
 
The reason they choose not to is because you have to create a new board design for CDMA carriers and have a separate manufacturing line. Apple would rather not do that. My guess is that they wanted to wait to make one phone that worked for both AT&T and Verizon using the LTE standard, but that's probably not going to be ready until 2012 at the earliest and Android is quickly becoming a popular #2 in smartphone sales.
In non-LTE areas, such a phone would need to fall back to the previous 3G technology (GSM or CDMA), just as today's iPhone 3GS will drop back to EDGE if it can't find 3G.

Perhaps by that time, there will be an LTE/GSM/CDMA multi-mode 3G/4G chip.
 
GIVE IT UP!
Why would Apple waste money to produce a CDMA phone JUST FOR ONE CARRIER? Not going to happen. Give it a rest already.

The same reason anyone does - because they are the largest carrier in the US. By your logic no one would ever produce a CDMA phone!
 
How often, when you are on a call, take the phone from your head, while the other person is on the line and go on the internet? I did it maybe twice, and that's because I wasn't interested in what the other persons were saying.


the truth of the matter is that, people lived without it on the iPhone 2G, and people will of course live without it on Verizon. I mean look; Verizon has more subscribers than ATT (give or take, I might be wrong). these people don't ever complain about their not having data and voice together.



Don't mock. This was credited by the Wall Street Journal, and they do not just randomly publish uncredible sources, otherwise they wouldn't have a name.


Because they had both together so why would they complain? Lol. Those that have it, like it and would like to keep it.

The WSJ should stick to what it knows best - news. Not rumor. :)

I changed my mind. I hope to all that is holly that Verizon gets the iPhone so these rumors and threads stop. Then we can hear the complaints from the Verizon crowd instead.
 
It wouldn't be for one carrier. CDMA is used in some other major markets, notably China, Japan, and Korea.

That said, I still don't believe that the iPhone is coming to Verizon this year.

However, some only see the advantage for Verizon which is far from the case. IF Apple would produce a CDMA phone I doubt it'll just be for Verizon in America.

Beside, GSM is the most popular for mobile around the world. So in my opinion making a CDMA device would be kind of like a step backwards.
 
The same reason anyone does - because they are the largest carrier in the US. By your logic no one would ever produce a CDMA phone!

Apple isn't everyone else though, they don't NEED to make one. That's not my point anyways. It wouldn't be JUST for Verizon if they decided to go down this route. Once Verizon gets the okay so will Sprint and other CDMA carriers in America.
 
However, some only see the advantage for Verizon which is far from the case. IF Apple would produce a CDMA phone I doubt it'll just be for Verizon in America.

Beside, GSM is the most popular for mobile around the world. So in my opinion making a CDMA device would be kind of like a step backwards.
If building a CDMA iPhone generates huge piles of money, then it wouldn't be a step backwards.

At least that's the way I see it as an AAPL shareholder.

Naturally, there are costs associated in designing, building, selling, and supporting a CDMA iPhone. It's up to Apple to decide if it's worth it. I don't want Apple to squander their time and resources (specifically engineering staff) on something that doesn't have a high profit margin.

Frankly, I'd rather have them improve the iPad or perhaps rework the Apple TV device over building a CDMA iPhone at this time. But that's just me...
 
I can see the commercial now. . .

"You can't surf the web at the same time. . . but It's on the nations better network" iPhone HD Now on Verizon

So lame. . . I don't buy these Verizon rumors simply because the iPhone, in America, doesn't need Verizon to still be successful.

GIVE IT UP!
Why would Apple waste money to produce a CDMA phone JUST FOR ONE CARRIER? Not going to happen. Give it a rest already.

How about for TWO carriers? Sprint's new EVO 4G will allow you to talk and surf at the same time.

From their press release:

HTC EVO 4G features the latest version of the increasingly popular Android platform, Android 2.1, offering more than 35,000 apps, as well as a mind-blowing list of features, including:

Simultaneous voice and data capability in 4G and Wi-Fi coverage areas, enabling Web surfing and more while the conversation continues.
 
Is anyone here familiar with Apple production process? Do they have several contractors / manufactures / plants for one product? Example are there two different ones of these who make MacBook Pro's for Apple for example?

My guess would be IF and to me its a big IF the iPhone goes CDMA that they will have a supplier for that portion of the iPhone and assembly it in the same place as their GSM iPhones.

I for one have my fingers crossed for a US Tmobile deal so I don't have to be ashamed to take my unlocked iPhone out in the Apple store ! :)

What's your thoughts????

It's very possible the current manufacturer couldn't handle the volume.

lol 2 things i have to ask

1. Didnt they say, if they were to make a CDMA iPhone, wouldnt it be used in China first [from what i heard]

2. If the user is on safari or playing a game through wifi with other friends [Game Center IN OS 4.0] Would that mean the call will always go to voicemail?

1. That was a rumor, but not sure from where and it may have been baseless.

2. No, the data stream is put on hold for a moment while the voice call is passed through.

Actually, I think many people use voice and data at the same time....you've never been on Pandora and get a call? Never in an IM app and get a call...on a call and need Fandango for a movie time, or Google Maps for quick directions or something, daily I am on the phone with work and downloading some PDFS to view, can't do that on Verizon as a business user....I think your usage is different than mine obviously, but I bet there a 50/50 split of people who consume lots of data while on the phone

See what I said above. Not an issue.

It would be ironic if having the CDMA 'iPhone 4G' reduces Verizon's incentive to develop a 4G network!

They are already developing the network. So you're implying they would suddenly stop?

I wish Verizon would allow me to browse the internet while on a call. No emails while on a call sucks, and reminds me of my days on the first gen iPhone and EDGE.

Again, read what I wrote above. Unlike Edge, EVDO actually pauses the data stream in order to pass on the voice call.

In addition, Verizon's internet speeds are much slower on 3g than AT&T, and if you don't live in New York or San Francisco, you probably don't have much of a problem with dropped calls. I don't. If Verizon would patch up these issues then I would switch, but I'll probably wait until they come out with 4g.

Actually, they aren't that much slower. In fact, the AT&T network is often bogged down making my Verizon friends faster.

What would be really killer is if Verizon offered to pay off the cancellation fees on people switching from AT&T. That will keep most people from jumping initially. It will also be funny when Verizon's network feels the strain of the iPhone, lol. Nobody can prepare for that. I'm calling it!

How could they not possibly plan for it based on AT&T's experience??? I wouldn't be surprised if they poached a few AT&T engineers if they really needed. Also, people seem to forget that Verizon has a lot of Smartphones. They've had them longer than AT&T. Sure, the iPhone might use more data than a lot of some past phones, but I'm sure Verizon has all the data they need from the Droid (and perhaps they have a few of their own iPhones for testing.) Let's put it this way, Verizon didn't just accidentally earn the reputation of having the most reliable network. They have good engineers.

Does anyone know much about Sprint? I've seen their plans are a lot cheaper and they have 4g in some cities already, but several years ago a lot of my friends ditched them because of spotty coverage and poor service in general. Are they at least better than AT&T now? It seems like they have more 3g coverage. My wife's uncle in Maryville, MO (population like 10,000) has 3g on his laptop's datacard with Sprint.

Something happened to Sprint. They used to be great, but they seem to have deteriorated.

If you look at all my posts in the past about Verizon I have been saying this since last year that Verizon was in fact getting the iPhone and it will be an amazing day.
Also AT&T's stock will drop dramatically when this happens as over 20million consumers will be leaving launch weekend, I am sure this is of no surprise.
This however might just be a surprise. Did you know AT&T offered 4 billion privately (as in side money not part of the proposal amount) to a couple Exec's that can sway where the iPhone can go and also keeping the iPhone until 2014.

Where do you get these numbers to 20million ppl will make a mass exodus?

CDMA is a different timing slice and has different chip coding and different antenna structure (not sure on the antenna structuring). CDMA actually only send signal in slices per second. Its got most to do with that.

However, I don't have a clue why they are not interchangeable.

I will say this too. If iPhone to Verizon is true, this will be the coup de-gracie.

Short T and go VZW.

Sounds like you are describing TDMA (the base for GSM in the US) not CDMA.
TDMA = Time Division Multiple Access
CDMA = Code Division Multiple Access

There's a new cell site being installed right next to the building I work in. My curiosity finally won and I asked the installer foreman today at lunch what equipment was going in the building.

His response was "The shelter will house only Verizon equipment", and then he named both the Verizon and AT&T frequencies, plus LTE, as the antennas they had already installed. They were finishing up running the 18 large cables between the antennas and the shelter today. Over the next 3-4 weeks they will install the equipment in the shelter, and then begin live testing of the Verizon LTE site.

My two cents is that the first Verizon iPhone will be LTE data with CDMA voice (allowing for simultaneous access), and that it'll be out for the Christmas shopping season. (My timing is a guess admittedly.) But the GSM frequencies he mentioned were curious to me (don't know what they mean).

This sounds like a reasonable possiblity.
 
How about for TWO carriers? Sprint's new EVO 4G will allow you to talk and surf at the same time.

From their press release:

HTC EVO 4G features the latest version of the increasingly popular Android platform, Android 2.1, offering more than 35,000 apps, as well as a mind-blowing list of features, including:

Simultaneous voice and data capability in 4G and Wi-Fi coverage areas, enabling Web surfing and more while the conversation continues.

Go look at the coverage map. Then get back to us. :rolleyes:
 
finally, verizon customers will eat their words with a bogged down network.

Or not. Perhaps you didn't know that separately, both Verizon Wireless, Sprint Carry More Data Traffic than AT&T.


I'm not exactly gettin all my hopes up... but I do hope this is true!

not because I want a verizon iphone, but to see all those macrumors people who said it will never happen, see it happen. then i will :p

...and I will :p when all those Verizon Iphone customers finally have a fast, reliable network - and the AT&T Iphone customers are still dropping calls.

It wouldn't be ironic. It would be illogical.

Most likely, the appearance of the iPhone on Verizon's CDMA network would put a strain on their 3G service. If anything, the introduction of the iPhone on Verizon would put more pressure on Verizon to deploy their next generation network.

Remember, iPhone users use massive amounts of data, far more than other smartphone users.

Verizon heavily pushes 3G for laptops - both with embedded OEM radios and USB/card plugin modems. Laptops typically use 20x the data bandwidth of a smartphone.

The Iphone is really unlikely to bog down Verizon's network.


There's a technical barrier in as much as GSM and CDMA require completely different radio hardware in the phone. It's not an insurmountable one; they could create two separate models, but it's not as easy as selling a single GSM model to multiple carriers. But there is an engineering and certification cost to making two models.

Verizon sells a number of "world phones" with both GSM and CDMA radios, so it's really not a big deal.

The Qualcomm "Gobi" chip supports most of the major radio standards, plus has assisted GPS on the radio chip. The only issue of note is dealing with antenna design for the different frequencies.
 

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I think people are forgetting about how Apple initially approached Verizon to release the first iPhone in 2006. This obviously shows that they were fully intentioned on releasing a CDMA iPhone at that point of time. If they had gone ahead and done it, they would have had to produce a GSM model for the rest of the world, so Apple was ready to produce 2 different models. Of course, after being initially rejected by Verizon, they might have thought that it was better to go with a GSM only model, but this obviously shows that Apple had the intention of creating a CDMA iPhone so it is not out of the realm of possibilities.
 
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