Recommendation ITU-T Q.931 ISDN user-network interface layer 3 specification for basic call control Amendment 2 – Extensions for the support for the callingline identification authentication
Summary
History
FOREWORD
1 Scope
2 Formats and codes of ISDN user-network interface layer 3 specification
     4.5.31 calling party number authentication
3 Appendix IV
Appendix IV  Summary of assigned information element identifier and message type code points for the Q.93.x series and Q.95.x series of Recommendations
Bibliography