PLMN-type Detection Call Flow

This section describes the PLMN-type Detection call flow.

PLMN-type Detection Call Flow
PLMN-type Detection Call Flow Description

Step

Description

1

The PLMN-type detection process begins.

2

The Create Session Request is received.

3

The MCC or the MNC presence in the APN is verified:

  • If YES, the next step is executed.

  • If NO, the PLMN-type subscriber is concluded as Visitor.

4

The MCC or the MNC presence in the SGW is verified:

  • If YES, the next step is executed.

  • If NO, the PLMN-type subscriber is concluded as Visitor.

5

The values of the MCC or the MNC in the APN and the SGW are compared:

  • If EQUAL, it proceeds to the next step.

  • If NOT EQUAL, the PLMN-type subscriber is concluded as Roamer.

6

The values of the MCC or the MNC in the SGW and the IMSI are compared:

  • If EQUAL, the PLMN-type subscriber is concluded as Homer.

  • If NOT EQUAL, the PLMN-type subscriber is concluded as Visitor.