This TS specifies the stage 3 of the control plane of the GPRS Tunnelling Protocol, Version 2 for
Evolved Packet System interfaces (GTPv2-C).
GTPv2-C shall be used across:
The procedures supported between the TWAN and the PGW on the S2a
interface, and between the ePDG and the PGW
on the S2b
interface are specified in TS 23.402
to see the ToC for advanced Rel-15 Word version