| 02.24 | 0015 | - | 4.3.0 | Ph2 | Clarification of AoC text |
| | 385/94 | approved | 4.4.0 |
| 02.24 | 0014 | 1 | 4.3.0 | Ph2 | AoC and Call re-establishment |
| | 385/94 | approved | 4.4.0 |
| 02.24 | 0013 | 1 | 4.3.0 | Ph2 | Clarification of call handling with AoC |
| | 385/94 | approved | 4.4.0 |
| 02.24 | 0012 | - | 4.2.1 | Ph2 | Increase in capacity of Accumulated Charge Meter (ACM) |
| | 197/94 | approved | 4.3.0 |
| 02.24 | 0011 | - | 4.2.0 | Ph2 | Support of multiple calls |
| | 21/94 | approved | 4.2.1 |
| 02.24 | 0010 | - | | Ph2 | CAI message not acknowledged if not supported |
| | 534/93 | approved | 4.2.0 |
| 02.24 | 0009 | - | | Ph2 | CAI message contains all or some charging elements |
| | 534/93 | approved | 4.2.0 |
| 02.24 | 0008 | - | | Ph2 | Introduction of PUCT |
| | 367/92 | approved | 4.2.0 |
| 02.24 | 0007 | - | | Ph2 | Accumulated Call Meter |
| | 288/92 | approved | 4.2.0 |
| 02.24 | 0006 | - | | Ph2 | Clarifications |
| | 288/92 | approved | |
| 02.24 | 0005 | - | | Ph2 | Call Meter |
| | - | | |
| 02.24 | 0004 | - | | Ph2 | Advice of Charge |
| | - | | |
| 02.24 | 0003 | - | | Ph2 | Use of initial Time related CAI element |
| | 301/91 | approved | 4.2.0 |
| 02.24 | 0002 | - | | Ph2 | Charging Supplementary Services |
| | 151/91 | approved | 4.2.0 |
| 02.24 | 0001 | 2 | | Ph2 | Advice of Charge |
| | 15/91 | postponed | |