| Index |
| Index of the set of tone definitions. |
| InternDef |
| Tone definition table index for the internal dial tone. |
| ExternDef |
| Tone definition table index for the external dial tone. |
| CallingDef |
| Tone definition table index for the calling tone. |
| BusyDef |
| Tone definition table index for the busy tone. |
| SpecialDialDef |
| Tone definition table index for the special dial tone. |
| IntrusionDef |
| Tone definition table index for the intrusion tone. |
| PositiveAckDef |
| Tone definition table index for the positive acknowledgement. |
| NegativeAckDef |
| Tone definition table index for the negative acknowledgement. |
| ContinousDialDef |
| Tone definition table index for the continous dial tone. |
| CallWaitingDef |
| Tone definition table index for the call waiting tone. |
| Notification1Def |
| Tone definition table index for the notification tone 1. |
| Notification2Def |
| Tone definition table index for the notification tone 2. |
| Notification3Def |
| Tone definition table index for the notification tone 3. |
| RingbackDef |
| Tone definition table index for the ring back tone. |
| FallbackDef |
| Tone definition table index for the fall back tone. |