| Index |
| A unique value for each internal extension. Range: 1 to 65535 |
| IfIndex |
| InterfaceIndex where the extension is placed. Range: 0 to 2147483647 |
| DeviceVirtualIndex |
| This value contains the virtual device index of the mpsDeviceVirtual table, if the mpsExtensionIfIndex is zero. |
| Number |
| This value contains the internal number for the extension. Range: 0 to 4 |
| DisplayName |
| Internal name of the extension. This name will be displayed at the internal calling party. Range: 0 to 20 |
| AuthName |
| Login name for VoIP-registration at the pbx. Range: 0 to 20 |
| AdminStatus |
| Just for MIB entry deletion. Enumerations: |