IMS, Not VoLTE, is the Future of Voice with T-Mobile
T-Mobile is not looking at VoLTE as a calling option for its LTE 4G network, and will instead transition its cellular voice services to the IMS-based Wi-Fi calling feature that's already present on its smartphones. T-Mobile USA senior vice president of marketing Andrew Sherrard told Phone Scoop that the company has worked with its hardware partners in recent quarters to make sure that the IMS-based Wi-Fi client is on board many of its smartphones. Unlike the UMA service that T-Mobile offered several years ago, the IMS-based Wi-Fi service cannot hand calls off from Wi-Fi to the macro cellular network when customers leave Wi-Fi coverage. The call will drop. This will current problem will not apply to LTE 4G, which can support IMS-based calls. T-Mobile will continue to add the IMS-based calling client to all its devices as it transitions from HSPA+ to LTE over the next few years. T-Mobile believes that IMS will be its technology of choice for voice calls across its LTE 4G network.
T-Mobile Announces Native Video Calling Service
T-Mobile today announced T-Mobile Video Calling, a service that works with the native phone dialer of select handsets without requiring special apps. Like VoLTE and HD Voice, T-Mobile Video Calling can move easily between LTE and WiFi with no dropped video.
T-Mobile Announces In-Home LTE CellSpot
T-Mobile today showed off the 4G LTE CellSpot, a "mini cell tower" meant for in-home or in-office use. Similar to T-Mobile's WiFi CellSpot Router, the LTE CellSpot provides full LTE coverage in small buildings up to 3,000 square feet.
Verizon to Bring VoLTE to Prepaid Later this Year
Verizon Wireless plans to give its prepaid subscribers access to VoLTE services, including HD Voice and video calls in the near future. Prepaid customers will need to add HD Voice to their account before they can make HD calls, but the add-on will be free.
AT&T, Verizon Intercarrier VoLTE Launch Target Comes and Goes
AT&T and Verizon Wireless are still working to launch support for intercarrier VoLTE, despite missing the initial target. The companies expected to allow one another's customers to connect VoLTE calls between them before the end of 2015.
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