ITU-T Q.3640-2018
Framework of interconnection of VoLTE/ViLTE-based networks (Study Group 11)

Standard No.

ITU-T Q.3640-2018

Release Date

2018

Published By

ITU-T - International Telecommunication Union/ITU Telcommunication Sector

Latest

ITU-T Q.3640-2018

Scope

This Recommendation describes the framework and procedures that should be implemented by operators for establishing an interconnection between voice over long-term evolution / video over long-term evolution (VoLTE/ViLTE)-based networks to achieve worldwide interoperability. This Recommendation identifies additional scenarios and requirements for VoLTE/ViLTE interconnection which have not been defined in existing 3GPP standards and GSMA guidelines@ as follows: ?C possible E2E scenarios in terms of interconnection and roaming; ?C description of the EPC functions which should be supported; ?C EPC configuration requirements; ?C device and U/ISIM requirements; ?C comparison of VoLTE roaming architecture; ?C list of mandatory and optional services which should be supported by operators for interconnection and roaming scenarios; ?C protocol implementation statement (PICS) needed for the service level agreement (SLA).

ITU-T Q.3640-2018 history

• 2018 ITU-T Q.3640-2018 Framework of interconnection of VoLTE/ViLTE-based networks (Study Group 11)