Manualshelf

Users Manual

ManualsBrandsPoly ManualsTelecom EquipmentDECT Base Station with DECT function
11121314151617181920
SME VOIP SYSTEM GUIDE 1.1 74 | P a g e
Proprietary and Confidential
DECT SOURCE
CHANGED
Number of time a base has changed sync source
IEEE1588 SYNC LOST
Connection is lost to all synchronized
Base station
s, connection will be lost.
IEEE1588 PRIMARY
LOST
Connection is lost to one of the synchronized Base stations, in this case new primary will
be selected automatically.
Free Running explained
First, state Free running NOT an error state, but is a simple trigger state, indicating that some changes have to be
made to ensure continuous DECT synchronization.
The state Free running, tells the application that the base has not gotten any synchronization data from its
synchronization source Base station in the last 10 seconds.
The reason for this can be several:
1. The two bases are using the same DECT slots and can therefore not see each other.
2. Many simultaneous voice or data calls.
3. Suddenly change of environment (Closing a fire door)
4. Distortion of DECT frequency (around 1.8MHz) Either by other DECT systems or other equipment.
When the Free running state is trigged, several recovery mechanisms are activated:
1. Move DECT slot to avoid using same DECT slot as its synchronization source base state.
2. Use information from all other Base station, how they are seeing this Base station in the DECT air.
This is marked by changing to state Assisted lock
The state Assisted lock can be stabile for a long time and normally change to state Locked again.
The state Free Running can also change back to state Locked again.
If the base is in state Free running and the synchronization source Base station is not seen and no data is available for
the assisted lock mechanism, the Base station will change to a new state after 2 minutes:
1. If the Base station does NOT have any active calls, the base will change to state Searching.
2. If the Base station has an active call, this base will change to state Sync lost. After the call is released, the
state will change to state Searching.
Call data
Data is organized in a table as shown in the below example.
Screenshot