CONTENTS

 1     Scope
 2     References
 3     Definitions
 4     Abbreviations
 5     Architecture
        5.1     Network oriented architecture
        5.2     Protocol oriented architecture
                  5.2.1     Upper layer protocol architecture
                  5.2.2     Lower layer protocol architecture
 6     Signalling procedures
        6.1     Normal procedures
                  6.1.1     ISC procedures
                  6.1.2     SPNE procedures
        6.2     Abnormal procedures
                  6.2.1     Abnormal ISC procedures (for further study)
                  6.2.2     Abnormal SPNE procedures
        6.3     Maintenance procedures
                  6.3.1     Connectivity test (optional)
 7     Detailed protocol description
        7.1     Lower layer protocol description
        7.2     Upper layer protocol description
                  7.2.1     Channel associated signalling for 2048 kbit/s networks
                  7.2.2     Message associated signalling in 1544 kbit/s networks
                  7.2.3     Message associated signalling in timeslot 0 of 2048 kbit/s networks
                  7.2.4     Message associated signalling in timeslot "n" of 2048 kbit/s networks
                  7.2.5     Local Area Network (LAN)
                  7.2.6     SS7 based protocol
Annex A – SPNE over TS16 (CAS): Lower layer protocol
Annex B – Protocol for MAS in the DL channel in 1544 kbit/s networks
Annex C – Lower layer protocol for MAS within timeslot 0 in 2048 kbit/s networks
Annex D – Lower layer protocol for MAS in timeslot "n" with 2048 kbit/s networks
Annex E – Lower layer protocol for local area network signalling link
Annex F – SPNE Over SS7: Lower layer protocol
Annex G – Specification and Description Language (SDL) diagrams
        G.1     SDLs for Facility Related Channel Associated Signalling (CAS)
        G.2     SDLs for Facility Related Message Associated Signalling (MAS)
        G.3     SDLs for LAN signalling
        G.4     SDLs for SS7
Annex H – SPNE Protocol Data Units
        H.1     Echo cancellation
        H.2     Noise reduction
        H.3     Automatic Level Control (ALC)
        H.4     Frequency Equalization (FE)
        H.5     A-law/m-law conversion
Appendix I – Channel monitor (for further study)
Appendix II – Discussion of signalling protocols used on the DL 1544 kbit/s networks
       II.1     Standards for the use of the data link channel 1544 kbit/s networks
       II.2     Retransmission of control data
       II.3     Synchronization
Appendix III – Call control capacity of the DL signalling channel