This field indicates the current state of the device synchronization process between the client and server. If device synchronization was requested in the subscription, the call server will send batch update notifications to the client for all existing devices. The server will always send at least two notifications: the first with a synchronization state of SYNC_BEGIN, and the last with a synchronization state of SYNC_COMPLETE. All intermediate notifications will have a synchronization state of SYNC_IN_PROGRESSS. Once the synchronization process is complete subsequent notifications will have a synchronization state of NONE. Note that the SYNC_COMPLETE packet may or may not contain any actual devices. In the event that it does these devices are considered to be part of the synchronization process.
| Name | Type | Restrictions |
|---|---|---|
| PlcmDeviceNotificationSynchronizationState | xs:string | Value must be one of:
|