This document contains testing scenarios for the verification of intersystem signaling and cellular feature compatibility with IS-41 (Rev-B), IS-53 (Rev -0) and TSB-51 (Rev. 0). All references to IS-41 in this document refer to Revision "B". All references to IS-53 in this document refer to Revision 0. All references to TSB-51 in this document refer to Revision "0".

Several basic concepts have guided the formation of this document. Firstly, these tests are not intended to be a complete exercise of ail possible combinations of intersystem signaling scenarios. Instead these tests are intended to provide an adequate exercise of intersystem signaling and cellular feature operation to verify IS-41, IS-53 and TSB-51 compatibility between the systems in question, these exercises present a manageable set of verification exercise tests, not necessarily an all inclusive set. Generally speaking, effort has been made to order the tests from the simplest case to the more complex. In doing this the intention is, when a test fails, it identifies the simplest test capable of detecting the fault in the test sequence. Lastly, the intended audience is testing personnel, they are assumed to be individuais who have an understanding of intersystem signaling and feature operation between Cellular Systems and related terminology, but not necessarily knowledgeable of the relevant IS-41, IS-53 or TSB-51 standards.