Google Set to Unveil Wireless Service

Google is set to unveil its new US wireless service as early as April 22, pushing the company further into telecom and injecting fresh uncertainty into a wireless industry already locked in a price war.

In a key development, the service is expected to allow customers to pay only for the amount of data they actually use each month, people familiar with the matter said -- a move that could further push carriers to do away with lucrative “breakage.” Google’s service will run on the networks of Sprint and T-Mobile, which have agreed to carry the traffic, people familiar with the matter have said. The service initially will work only on Google’s latest Nexus 6 phones, and the devices will dynamically be able to switch between Sprint and T-Mobile networks depending on which carrier has the strongest signal. The service also is expected to use Wi-Fi networks to route phone calls and data, which could further reduce subscribers’ bills. Other specifics remained unknown.