User's Manual

Table Of Contents
41
Alarm log
Select a time range and alarm type, and then click Query.
The query results are displayed.
Query results
Talkback Setting
The access controller can work as a door station (VTO) and call other devices.
3.6.1 SIP Server
On the web, you can add door stations and indoor stations to the SIP server so that they can
talk to each other. The SIP server can be the access controller or other door stations.
When the access controller works as the SIP server, it can connect up to 50 other access
controllers and indoor monitors (VTH) combined.
3.6.1.1 Access Controller as SIP Server
Log in to the web interface.