Traditional Culture Encyclopedia - Hotel reservation - What does the hotel phone vol mean?

What does the hotel phone vol mean?

Voice service in 4G network. According to the online display of Zhongguancun, the telephone vol stands for VoLTE, which is a VoiceoverLTE based on 4G network. VoLTE is an IP-based data transmission technology, which is different from the current 4G that only provides data services, and calls need to be switched to the mode of 2G and 3G networks. VoLTE voice calls are all made on the 4G network.