A distinction is made in this Recommendation between the information to be sent by the telephone user for different types of calls and the corresponding information to be sent by the international signalling equipment.With regard to the latter, the sequence of forward address information signals is dealt with in detail. The detailed exchange of other signalling information is covered by the procedures described in the specifications of the CCITT signalling systems concerned.
ITU-T Q.107 SPANISH-1988 Referenced Document
ITU-T O.11 Maintenance Access Lines - Specifications of Measuring Equipment (Study Group IV) 10 pp*， 1992-01-01 Update
ITU-T O.22 CCITT Automatic Transmission Measuring and Signalling Testing Equipment ATME No. 2 - Specifications of Measuring Equipment (Study Group IV) 35 pp*， 1992-01-01 Update
ITU-T Q.254 2.1 Telephone Signals - Specifications of Signalling System No. 6 (Study Group XI) 4 pp
ITU-T Q.258 3.2 Telephone Signals - Specifications of Signalling System No. 6 (Study Group XI) 8 pp
ITU-T Q.722 GENERAL FUNCTION OF TELEPHONE MESSAGES AND SIGNALS
ITU-T Q.762 Signalling System No. 7 ISDN User Part general functions of messages and signals Study Group 11*， 1999-04-19 Update
ITU-T Q.763 Signalling System No. 7 - ISDN User Part Formats and Codes - Series Q: Switching and Signalling - Specifications of Signalling System No. 7 - ISDN User Part (Study Group 11)*， 1999-12-01 Update