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.
Verizon Says VoLTE to Launch in Coming Weeks
Verizon Wireless today announced the pending launch of its delayed VoLTE service. The service will go live in the coming weeks, and will allow select devices to connect HD Voice calls and Video Calls.
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.
Verizon's VoLTE Service Live for iPhone 6 and 6 Plus
Verizon has made its Advanced Calling 1.0 feature available to the Apple iPhone 6 and 6 Plus. The free service will pass voice calls over Verizon's LTE 4G network rather than the cellular network.
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.
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