CONTENTS

 1     Introduction
 2     Requirements of networks served by the signalling connection
 3     HSRC components for link-by-link signalling
        3.1     General
        3.2     International component of HSRC
        3.3     National components of HSRC
 4     Overall signalling delay for link-by-link signalling
 5     HSRCcomponents for end-to-end signalling
        5.1     General
        5.2     International component of HSRC
        5.3     National components of HSRC
 6     Overall signalling delay for end-to-end signalling
 7     Influence of new SS No. 7 applications
        7.1     Effects of database queries
        7.2     Effects of message length and other variables
 8     Remarks
Annex A – Database query considerations
        A.1     General
        A.2     Delay formulae
        A.3     Application
        A.4     Reduction in User-Part delay allowance
References