ALE M3-M5-M7-M8 DeskPhones Administrator Guide   
Prefix mode: 
The IP phone will send on code or off code to synchronize the status of the call forward between the IP 
phone and the server. 
Subscribe mode: 
The IP phone will send subscribe message to synchronize the status of the call forward between the IP 
phone and the server when forward states change. 
The following table lists the parameters you can use to configure call forward synchronization for server-side. 
Note: X means account ID and it can be number 1~8 for M3/M5/M7, and 1-20 for M8. 
It configures the FWD method for the IP phone. 
Note: It works only if “FeatureFwdMode” is set to 0 (Phone). 
0 - Prefix 
1 - Subscribe, the IP phone send a SUBSCRIBE message with event “as-feature-event” to 
the server. 
Features → Forward → Forward method 
It configures the FWD method for the IP phone account X. 
Note: It works only if “FeatureFwdMode” is set to 1 (Custom). 
0: Prefix 
1: Subscribe. The IP phone sends a SUBSCRIBE message with event “as-feature-event” to 
the server. 
Features → Forward → Forward method 
10.15 DND & FWD Synchronization 
After the function synchronization is enabled, the DND&FWD on the phone side and the DND&FWD on the 
server side can be synchronized with each other. The user can conveniently turn on or off DND&FWD on the 
phone side or the web page. 
The following table lists the parameters you can use to configure this feature. 
Note: X means account ID. It can be number 1~8 for M3/M5/M7, and 1-20 for M8. 
AccountXDndSyncServerLocalProcessingEnable 
In the case of server synchronization, it configures the phone’s each account to handle 
the local DND. 
Note: It only works when FeaturedDndMethod is set to 1 (Phone mode) or 
AccountXDndMethod is set to 1 (Custom mode). 
false - disable 
true - enable 
AccountXDndShareLineSyncServerEnable