TIA J-STD-038-B

Abstract

The scope of this standard are the services, information flows and message mappings which require interworking and interoperability functional specifications to support roaming between ANSI-41 MAP and GSM MAP networks. The scope of this volume is to provide a description of interstandard roaming along with an overview and network reference model for the Interworking and Interoperability Function (IIF). <br><strong>Purpose</strong> <br>The purpose for this standard is to define and describe the functions necessary for roaming between ANSI-41 MAP and GSM MAP based networks in the support of roaming subscribers. This includes a capability to allow a subscriber to an ANSI-41 based network (e.g., a TDMA or CDMA native subscriber) with a mobile terminal supporting GPRS service to roam to a GPRS network in GSM Foreign Mode.