4 Overview

29.5783GPP5G SystemMobile Number Portability ServicesRelease 18Stage 3TS

4.1 Introduction

Within the 5GC, the MNPF offers services to the SMS-GMSC, NRF and SCP via the Nmnpf service based interface (see 3GPP TS 23.501 [2], 3GPP TS 23.502 [3], and 3GPP TS 23.540 [14]).

Figure 4.1-1 provides the reference model (in service based interface representation and in reference point representation), with focus on the MNPF.

Figure 4.1-1: Reference model – MNPF

The functionalities supported by the MNPF are listed in clause 6.7 of 3GPP TS 23.540 [14].