“Among the announcements that T-Mobile made last month was its plan to deploy improved voice calling on the iPhone 5 it will start selling later this month,” Ina Fried reports for AllThingsD.

“The technology, known as HD Voice, requires support from both the network and the devices on each end of the call,” Fried reports. “Speaking on Monday, AT&T senior VP Kris Rinne said that the carrier will roll out its own support for the technology later this year, as it begins to route voice calling over its LTE network.”

Fried reports, “Voice quality, of course, has been a sore spot for AT&T in recent years, though Rinne insists that past issues with dropped calls and other issues are largely over. ‘I think we’ve taken that off the table in terms of a competitive challenge,’ Rinne said.”

Read more in the full article here.