| Name | Value | Notes |
|---|---|---|
| ERROR | error | Represented in C# as 1 |
| HANGUP | hangup | Represented in C# as 2 |
| DIGIT | digit | Represented in C# as 3 |
| NO_INPUT | noInput | Represented in C# as 4 |
| NO_MATCH | noMatch | Represented in C# as 5 |
| RECOGNITION | recognition | Represented in C# as 6 |