Will FaceTime on coming iPhone 5 crash LTE networks?
Carriers prepare with new technologies, data plans, but analysts say nobody knows what will happen when iOS 6-based devices arrive
Computerworld - Are the nation's LTE wireless carriers prepared for the video chat data crunch expected to come with the next-generation iPhone and other devices that are expected to launch this fall?
The answer: It depends on whom you ask.
Both AT&T and Verizon Wireless decline to say whether they are ready for the data crunch.
Over the summer, both carriers introduced data sharing plans that analysts believe were timed to help limit a surge in heavy data use expected especially with the use of Apple's FaceTime real-time video chat software on the iPhone.
"If I were a carrier, I'd be rather frightened by FaceTime," said Jack Gold, an analyst at J. GoldAssociates. "If everybody used FaceTime, bandwidth would go up dramatically, and the user experience would go down."
Imposing data sharing plans with set fees for specific numbers of gigabytes a month -- and penalties for exceeding the set amounts -- could help top carriers AT&T and Verizon avoid data capacity overload problems on their 4G LTE, and even 3G, networks, Gold said.
"Requiring the data sharing plans is really just another way for carriers to say they are limiting your access," he added.
AT&T has come under fire in recent days for announcing plans to require users to sign up for a Mobile Share data plan in order to conduct FaceTime video chats over its current 3G and future cellular networks.
FaceTime will be available for cellular network use, instead of just over Wi-Fi, in mobile devices running the forthcoming iOS 6, which Apple announced earlier this year.
Sprint, the nation's number three carrier, has stood solidly behinds its unlimited data plans, and is just starting to roll out 4G LTE technology.
At an event to mark the activation of its 16th LTE location in Baltimore earlier this week, Sprint 4G engineering manager Viet Chu told reporters that "if some abuse the system [with heavy data use] we would address it." He didn't specify what steps the carrier may take.
Concerns about FaceTime's impact on cellular networks are particularly acute, partly because the iPhone is the top selling smartphone model worldwide and because the next model will reportedly support LTE, which would help make the device even more popular.
The upcoming iPhone is also expected to have a larger screen -- more than 4-inches compared to the current modle's 3.5-in. screen -- which would make video chats easier.
That creates problems for carriers because like most two-way chat apps, FaceTime is an enormous bandwidth hog.
Video chat often uses about 3 megabytes of data per minute, though the exact rate depends on encoded software, noted Wendy Cartee, vice president of product and technical marketing for JuniperNetworks.
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