CONTENTS

 1     Scope and field of application
 2     References
 3     Definitions
 4     Abbreviations
 5     General aspects of call control
        5.1     Model applicable to internetwork arrangements
        5.2     Classification of internetwork signals
        5.3     General principles concerning internetwork signals
 6     Transfer of addressing information
        6.1     General
        6.2     Transfer of X.121 calling address
        6.3     Transfer of E.164 calling address
        6.4     Transfer of X.121 called address
        6.5     Transfer of E.164 called address
        6.6     Format of X.121 addresses
        6.7     Format of E.164 addresses
        6.8     Transfer of address information additional to Recommendations X.121 and E.164
 7     Arrangements for user facilities (see Note 1)
        7.1     Facilities related to the Quality of Service (QOS) for the call
        7.2     Transit delay
        7.3     Throughput
        7.4     Facilities relating to the charging conditions applying to the call
        7.5     Facilities relating to specific routing conditions requested by the user of the call
        7.6     Facilities related to protection mechanisms requested by the user of the call
        7.7     Facilities to convey user data in addition to the normal data flow in the data transfer phase
        7.8     Other facilities
 8     Arrangements for call progress signals
        8.1     Interworking arrangements involving call progress signals defined in Recommendation X.96 only
        8.2     Internetwork arrangements involving call progress signals defined in Recommendation Q.931 only
        8.3     Internetwork arrangements involving call progress signals defined in Recommendation Q.699 only
        8.4     Internetwork arrangements involving call progress signals defined in Recommendations X.96 and Q.931
        8.5     Internetwork arrangements involving call progress signals defined in Recommendations X.96 and Q.699
        8.6     Internetwork arrangements involving call progress signals defined in Recommendations Q.931 and Q.699
Appendix I – Protocol elements of different networks used for the facilities and arrangements described in this Recommendation
        I.1     Circuit switched data transmission services
        I.2     Packet switched data transmission services