Apple iPhone 5 Can't Do Simultaneous Voice/Data on Verizon, Sprint Networks
September 14, 2012 8:59 AM
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AT&T iPhone 5 will support voice and data simultaneously
No matter how you feel about the
that was unveiled this week, it's an interesting smartphone to most people. However, we're learning that the phone can't support cellular data and voice calls at the same time on certain 4G LTE networks.
Specifically, the iPhone 5 will be unable to handle simultaneous voice and data use on Verizon Wireless and Sprint versions of the device. This is due to a limitation in the CDMA specification that those two networks use. However, some 4G LTE smartphones on the Verizon network will allow users to make voice calls and use data connectivity at the same time. The iPhone 5 is unable to do this
due to design decisions that Apple made.
“The iPhone 5 is designed to allow customers to make voice calls on the Verizon Wireless network and surf the Web on Wi-Fi,” Verizon spokeswoman Brenda Raney said in an e-mail. “It was an Apple decision."
New York Times
reports that when users place a voice call while connected to 4G LTE network the phone call the defaults to the carriers older second or third-generation networks because LTE networks can't support voice calls at this time.
The reason AT&T iPhone 5 buyers can place phone calls and use data at the same time is because both of those functions roll back to the older AT&T 3G network, which is capable handling both simultaneously.
New York Times
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RE: This Phone Fails.
9/15/2012 6:20:59 PM
LTE in a phone up until a few months ago meant either no battery life (which was the bulk of Android LTE phones), or using a massive battery which meant making the phones huge (which as a side effect brought about larger displays).
Qualcomm's 28nm LTE chips changed all that, now you can finally get good battery life out of something as small as an iPhone. The alternative solutions would have been to make it omgXBoxhuge, or to have under half the battery life of the prior gen iPhone. Both solutions are bad.
Now they reduced the size of the phone without compromising battery life at all, even when keeping LTE turned on. It isn't rocket science as to why they waited.
"Intel is investing heavily (think gazillions of dollars and bazillions of engineering man hours) in resources to create an Intel host controllers spec in order to speed time to market of the USB 3.0 technology." -- Intel blogger Nick Knupffer
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