CONTENTS

 1     Scope
 2     References
 3     Definitions
 4     Abbreviations
 5     General coding principles
        5.1     Format of BICC messages
        5.2     Format of ISDN user part messages
        5.3     CIC
                  5.3.1     Call Instance Code (BICC only)
                  5.3.2     Circuit Identification Code (ISUP only)
        5.4     Message type codes
        5.5     Formatting principles
        5.6     Mandatory fixed part
        5.7     Mandatory variable part
        5.8     Optional part
        5.9     End of optional parameters octet
       5.10     Order of transmission
       5.11     Coding of the length indicator
       5.12     Coding of the pointers
       5.13     Coding of spare bits
       5.14     National message types and parameters
       5.15     Rules for the allocation of message type codes and parameter name codes
       5.16     Meaning of "spare" and "reserved" codes
 6     Parameters
        6.1     Parameter names
        6.2     Access delivery information
        6.3     Access transport
        6.4     Application transport parameter (APP)
        6.5     Automatic congestion level
        6.6     Backward call indicators
        6.7     Backward GVNS
        6.8     Call diversion information
        6.9     Call diversion treatment indicators
       6.10     Call history information
       6.11     Call offering treatment indicators
       6.12     Call reference (national use)
       6.13     Call transfer number
       6.14     Call transfer reference
       6.15     Called directory number (national use)
       6.16     Called IN number
       6.17     Called party number
       6.18     Calling geodetic location
                 6.18.1     Ellipsoid point shape description
                 6.18.2     Ellipsoid point with uncertainty shape description
                 6.18.3     Point with altitude and uncertainty shape description
                 6.18.4     Ellipse on the ellipsoid shape description
                 6.18.5     Ellipsoid circle sector shape description
                 6.18.6     Polygon shape description
                 6.18.7     Ellipsoid Point with Altitude shape description
                 6.18.8     Ellipsoid Point with Altitude and Uncertainty Ellipsoid shape description
                 6.18.9     Ellipsoid Arc
       6.19     Calling party geodetic velocity information
                 6.19.1     Horizontal Velocity
                 6.19.2     Horizontal with Vertical Velocity
                 6.19.3     Horizontal Velocity with uncertainty
                 6.19.4     Horizontal with Vertical Velocity and Uncertainty
       6.20     Calling party number
       6.21     Calling party's category
       6.22     Carrier selection information (national use)
       6.23     Cause indicators
       6.24     CCNR possible indicator
       6.25     CCSS
       6.26     Charged party identification (national use)
       6.27     Circuit assignment map (ISUP only)
       6.28     Circuit/CIC group supervision message type
       6.29     Circuit/CIC state indicator (national use)
       6.30     Closed user group interlock code
       6.31     Coding decoding processing (ISUP only)
       6.32     Collect call request
       6.33     Conference treatment indicators
       6.34     Connected number
       6.35     Connection request (ISUP only)
       6.36     Continuity indicators
       6.37     Correlation id
       6.38     Display information
       6.39     Echo control information
       6.40     End of optional parameters
       6.41     Event information
       6.42     Facility indicator
       6.43     Forward call indicators
       6.44     Forward GVNS
       6.45     Generic digits (national use)
       6.46     Generic notification indicator
       6.47     Generic number
       6.48     Global call reference
       6.49     Hop counter
       6.50     HTR information
       6.51     Information indicators (national use)
       6.52     Information request indicators (national use)
       6.53     IN Service Compatibility
       6.54     Inter-nodal Traffic Group Identifier
       6.55     Location number
       6.56     Loop prevention indicators
       6.57     MCID request indicators
       6.58     MCID response indicators
       6.59     Message compatibility information
       6.60     MLPP precedence
       6.61     Nature of connection indicators
       6.62     Network management controls
       6.63     Network routing number (national use)
       6.64     Network specific facility (national use)
       6.65     Number portability forward information (network option)
       6.66     Optional backward call indicators
       6.67     Optional forward call indicators
       6.68     Original Called IN number
       6.69     Original called number
       6.70     Origination ISC point code
       6.71     Parameter compatibility information
       6.72     Pivot capability
       6.73     Pivot Counter
       6.74     Pivot routing backward information
                 6.74.1     Return to invoking exchange duration (national use)
                 6.74.2     Return to invoking exchange call identifier (national use)
                 6.74.3     Invoking pivot reason
       6.75     Pivot routing forward information
                 6.75.1     Return to invoking exchange possible (national use)
                 6.75.2     Return to invoking exchange call identifier (national use)
                 6.75.3     Performing pivot indicator
                 6.75.4     Invoking pivot reason
       6.76    Pivot routing indicators
       6.77     Pivot status (national use)
       6.78     Propagation delay counter
       6.79     Query on release capability (network option)
       6.80     Range and status
       6.81     Redirect backward information (national use)
                 6.81.1     Return to invoking exchange duration
                 6.81.2     Return to invoking exchange call identifier
                 6.81.3     Invoking redirect reason
       6.82     Redirect capability (national use)
       6.83     Redirect counter (national use)
       6.84     Redirect forward information (national use)
                 6.84.1     Return to invoking exchange possible
                 6.84.2     Return to invoking exchange call identifier
                 6.84.3     Performing redirect indicator
                 6.84.4     Invoking redirect reason
       6.85     Redirect status (national use)
       6.86     Redirecting number
       6.87     Redirection information
       6.88     Redirection number
       6.89     Redirection number restriction
       6.90     Remote operations (national use)
       6.91     SCF id
       6.92     Service activation
       6.93     Signalling point code (national use) (ISUP only)
       6.94     Subsequent number
       6.95     Suspend/resume indicators
       6.96     Transit network selection (national use)
       6.97     Transmission medium requirement
       6.98     Transmission medium requirement prime
       6.99     Transmission medium used
      6.100     UID action indicators
      6.101     UID capability indicators
      6.102     User service information
      6.103     User service information prime
      6.104     User teleservice information
      6.105     User-to-user indicators
      6.106     User-to-user information
 7     Messages
Annex A-Tables for handling of unrecognized parameter values
Annex B - General description of component encoding rules
        B.1     General components structure
        B.2     Tags
                  B.2.1     Tag class
                  B.2.2     Form of the information element
                  B.2.3     Tag code
        B.3     Length of the contents
        B.4     Contents
Annex C -Allocation of ISUP circuit identification codes