Qualcomm Claims First VoLTE-to-WCDMA Call Hand-Off
Qualcomm today announced that it and partner Ericsson have successfully completed the first voice call handover from an LTE mobile network (using voice over LTE — or VoLTE) to a WCDMA network. The call used Single Radio Voice Call Continuity (SRVCC), which is required for VoLTE calls to seamlessly switch to a WCDMA network when a consumer on a VoLTE call leaves the LTE network's coverage area. SRVCC and its predecessor CSFB (circuit-switched fall back) allow both LTE and 3G network connections to be supported on a single chip, which lets handset makers design smaller, less expensive, more power-efficient phones. The test was completed using an Ericsson handset with Qualcomm's Snapdragon S4 MSM8960 3G/LTE multimode processor.
Verizon Passes VoLTE Call Over Its Cat M1 Network
Verizon Wireless today said it completed the first test call using VoLTE on its Cat M1 network. The achievement is worth noting because Verizon's Cat M1 network is reserved for machine-to-machine and IoT applications.
Verizon Updates LG G3 with VoLTE
Verizon Wireless announced an over-the-air software update should hit the LG G3 beginning today that adds VoLTE capabilities. VoLTE passes voice calls over Verizon's LTE data network rather than its voice 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.
Verizon, AT&T Working On Intercarrier VoLTE
Verizon Wireless and AT&T today said the companies are working together to make interoperable VoLTE calls a reality. Both carriers offer VoLTE to their subscribers, but those calls can only pass between two VoLTE-enabled devices covered by an LTE network run by the same carrier.