| ITU-T Study Group 11 | Q.763 (1999) Amd. 7 (12/2023) | Extensions for the support for the calling line identification authentication | In force |
| ITU-T Study Group 11 | Q.763 (1999) Amd. 6 (10/2009) | Support for the customized alerting tone (CAT) service | In force |
| ITU-T Study Group 11 | Q.763 (1999) Amd. 5 (09/2006) | Transport of Voice Enhancement Device related information | In force |
| ITU-T Study Group 11 | Q.763 (1999) Amd. 4 (01/2006) | Support for the International Emergency Preference Scheme | In force |
| ITU-T Study Group 11 | Q.763 (1999) Amd. 3 (04/2004) | N/A | In force |
| ITU-T Study Group 11 | Q.763 (1999) Amd. 2 (12/2002) | Support for the International Emergency Preference Scheme | In force |
| ITU-T Study Group 11 | Q.763 (1999) Cor. 1 (07/2001) | N/A | In force |
| ITU-T Study Group 11 | Q.763 (1999) Amd. 1 (03/2001) | Coding of the Application Transport Parameter | In force |
| ITU-T Study Group 11 | Q.763 (1999) Add. 1 (06/2000) | N/A | Superseded |
| ITU-T Study Group 11 | Q.763 (12/1999) | Signalling System No. 7 – ISDN User Part formats and codes | In force |
