Dahua VTH1510A User Manual page 25

Click Contacts
Note:
If both parties of a call are using VTH15 series CH model (with camera)m they can perorm a
video talk.
3.1.2.2 Monitor
Click
It can call VTO(door station).
, you can call, add, edit and delete contacts.
Figure 3- 17
and select unit VTO, fence station or IPC.
Figure 3- 18