ion Time Interval (TTI) 86 User Plane Function (UPF) 9, 20, Transmitters (Tx) 198 27, 28, 177, 289, 291 User Plane (UP) 279, 329 Index VoNR initial procedures 178 3rd party registration 180, 181 Vehicle to Everything (V2X) IMS connectivity establishment 179, 180 communication 287, 297 IMS registration 180 types 309 subscriber provisioning 179 use cases 316 Vehicle-to-Grid (V2G) 316 Vehicle-to-Vehicle (V2V) system 225, 297 Vehicular Ad Hoc Networks (VANETs) 315 Wi-Fi 231 virtual Broadband Network Wi-Fi attach 168-173 Gateway (vBNG) 336 Wi-Fi calling 179, 189, 190 Virtual Infrastructure Manager (VIM) 50 Wireless Access in Vehicular Virtualized Network Function (VNF) 313 Environments (WAVE) 314 virtual machines (VMs) 289 standards 314 Virtual Network Functions Wireline-Wireless Convergence (WWC) 325 (VNFs) 50, 258, 328 Virtual-RAN (vRAN) 262 virtual reality (VR) 176 voice call continuity 185, 186 Zero Trust Architecture (ZTA) 281, 286 Voice Over Long-Term Evolution (VoLTE) 175, 323 Voice Over NR (VoNR) 175 5G system service requirements 176 call flow 163-168 concepts 175 drivers 175 IMS network deployments growth 175 ultra-high-definition audio 176 Voice over Wi-Fi (VoWi-Fi) 189 VoNR call procedures high-level call procedure activities 181 QoS flow establishment 183, 184 QoS flow tear down 184, 185 SIP signaling exchange 181-183 VoNR high-level architecture 176 5G NR access and core networks 176, 177 IP multimedia subsystem 177, 178 kpackt> Packtpub.com Subscribe to our online digital library for full access to over 7,000 books and videos, as well as industry leading tools to help you plan your personal development and advance your career. For more information, please visit our website. Why subscribe? Spend less time learning and more time coding with practical eBooks and Videos from over 4,000 industry professionals Improve your learning with Skill Plans built especially for you Get a free eBook or video every month Fully searchable for easy access to vital information Copy and paste, print, and bookmark content Di