Summary

This annex describes the interworking between ANSI-41 (Americas) Mobile Application Part (MAP) of North American Signalling System No. 7 and H.225.0 Multimedia protocols. It specifies the User Mobility Services using User Identification Module (H323_UIM) and the necessary mapping an Inter-working Function would utilize to achieve connectivity and functionality between H.323 networks and the Americas' Public Land Mobile Networks.

The detailed specifications of User Mobility Services between H.323 and ANSI-41 Public Land Mobile Networks are covered in the following functions:

–           AnnexE2_GK: Specifications for interworking function between ANSI-41 Mobile Application Part (MAP) and H.225.0;

–           H323_UIM: Specifications for ANSI-41 PLMN User Identification Module capability in an H.323 Terminal.

This annex requires ITU-T Recs. H.323 and H.225.0 versions 4 or later. Version 4 products can be identified by H.225.0 messages containing a protocolIdentifier = {itu-t (0) recommendation (0) h (8) 2250 version (0) 4}.