User's Manual Part 2

Firmware Version 1.0.0.1 UCM6200 Series IP PBX User Manual Page 243 of 320
manually enter the remote extensions under "Special Extensions" field.
Special Extensions
Manually enter the remote extensions in the peer/register trunk to be
monitored in the event list.
Valid format: 5000,5001,9000
Figure 145: Create New Event List
Remote extension monitoring works on the UCM6200 via event list BLF, among Peer SIP trunks or
Register SIP trunks (register to each other). Therefore, please properly configure SIP trunks on the
UCM6200 first before using remote BLF feature. Please note the SIP end points need support event list
BLF in order to monitor remote extensions.
When an event list is created on the UCM6200 and remote extensions are added to the list, the UCM6200
will send out SIP SUBSCIRBE to the remote UCM6200 to obtain the remote extension status. When the
SIP end points registers and subscribes to the local UCM6200 event list, it can obtain the remote extension
status from this event list. Once successfully configured, the event list page will show the status of total
extension and subscribers for each event list. Users can also select the event URI to check the monitored
extension's status and the subscribers' details.