4 General Description

29.2803GPP3GPP Sv interface (MME to MSC, and SGSN to MSC) for SRVCCEvolved Packet System (EPS)Release 17TS

This document describes the Sv interface related procedures, message parameters and protocol specifications. The Sv messages are based on GTP. The message format, IE coding, and protocol error handling for Sv is per GTP as specified in 3GPP TS 29.274 [3].

The general rules for IP address and UDP port number handling for the GTP messages on the Sv interface is per 3GPP TS 29.274 [3].