It is quite clear that Verizon and AT&T are the two powerhouses in the American mobile market. As the two have battled it out publicly in commercials – app for that, map for that, 3G coverage claims and everything else you can imagine – AT&T does have one undeniable benefit over Verizon. Simultaneous voice and data.
The benefit from AT&T is inherent from their network technology, which is GSM-based. Both Verizon and Sprint have CDMA technology which prevent them from accomplishing the same feat. But what about Sprint 4G? Could their WiMax technology usher in a new capability for the carrier to offer simultaneous voice and data to rival AT&T? The answer is “No” according to HTC, at least in terms of the HTC EVO 4G:
“If you’re using 4G for data, you can’t use CDMA for voice. Currently the only way to do simultaneous voice and data would be through a third-party VOIP solution. However, this is not due to strict hardware limitations, so it’s possible this could change with future updates.”
We haven’t yet heard from Sprint themselves and we’re not sure what the exact limitations are – this COULD potentially be resolved for future phones but I’m not sure how likely that scenario is to play out. But if you’re grabbing the EVO 4G it appears as though AT&T customers will still be able to brag about at least one downfall of your device… or at least the network on which your device is running.