ITU-T - International Telecommunication Union/ITU Telcommunication Sector
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ITU-T Y.2255-2018
Scope
This Recommendation specifies the requirements and solutions for voice and video call continuity (VCC). These requirements and solutions are applied for the scenarios where the multi-connection user equipment (MUE) is attached to the network with multi-connection via long term evolution LTE@ Wi-Fi and 2G/3G accesses.
ITU-T Y.2255-2018 history
2018ITU-T Y.2255-2018 Voice and video call continuity over LTE@ Wi-Fi and 2G/3G (Study Group 13)