INTRODUCTION

This Standard presents a recommended plan for the implementation of authentication enhancements for use in the Wireless Radiotelephone Service. Its intent is to describe the authentication enhancements so that the manner in which a system implements them may remain reasonably consistent from system to system.

The authentication enhancements include:

• Count Update after Handoff

• Obtaining subscriber profile before authentication on initial system access

• Handling of suspicious call originations

• Identify the Serving MSC when reporting the outcome of a requested authentication operation

•Handling of authentication capable mobile stations when the home system is not authentication capable

• Clarification and editorial correction of authentication procedures

• Miscellaneous authentication enhancements