Vietnamese mobile network operator, MobiFone has selected Taqua Virtual Mobile Core (VMC) to launch its Wi-Fi Calling service - WiTalk - in the country. The operator also leveraged Taqua’s Mobile Client to enable Wi-Fi Calling on Android smartphones that do not have native dialer support for Wi-Fi Calling.
WiTalk enables MobiFone subscribers to make and receive calls even when they have poor cellular network connection via any Wi-Fi network. Also, when traveling out of country, MobiFone subscribers can text and make calls over Wi-Fi networks with lower call tariffs, rather than using regular international roaming services, said the operator.
Taqua’s VMC is a virtualized IP Multimedia Subsystem (IMS) services core that enables rapid deployment of next-generation mobile voice and messaging services including VoWiFi and VoLTE. The VMC is a carrier-grade solution that integrates a number of standard IMS functions into a single software product, including a Telephony Application Server (TAS), IP Short Message Gateway (IP-SM-GW), Service Consistency and Continuity Application Server (SCC-AS), Serving Call State Control Function (S-CSCF) and Media Resource Function (MRF).