Calling User; By Room Number - Dahua Technology VTH2421F Series User Manual

3.2.3 Calling User

● Make sure that resident-to-resident call function has been enabled.
● Call function is used by VTH to call VTH.
● If both VTHs have a camera, bilateral video call can be provided.

3.2.3.1 By Room Number

Background Information
On the Call User screen, dial and call the user.
Procedure
Step 1 Select Call > Call User.
Step 2 Enter the room number (VTH room number).
● If VTO works as SIP server, dial room number directly.
● If the platform works as SIP server:
◇
◇
If main VTH (101#0) calls extension (101#1), please enter room no.: #1; if the extension calls
main VTH, please enter room number.: #0.
Step 3 Tap
If the VTH has a camera, there will be videos after answering the call.
Figure 3-6 Call user
Call a user in the same unit and the same building, dial room number directly.
Call a user in other buildings or units, add the building number. For example, dial
1#1#101 to call Building 1 Unit 1 Room 101.
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