Dahua Technology DHI-VTO4202F-P-S2 2MP IP Outdoor Video Intercom - Manual (Page 49)

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SIP Server
There must be a SIP server in the network for all connected VTOs and VTHs to call each other. Use a
VTO or another server as the SIP server.
Select Network > SIP Server.
SIP Server
Select a server type as needed.

To set the VTO you have logged in as the SIP server:
Check the box next to SIP Server and click Save to restart the VTO. You can add VTOs and
VTHs to this VTO. See the details in "5 Household Setting".
If the VTO you have logged into is not the SIP server, do not check the box for SIP Server.

If another VTO is setup as the SIP server:
Uncheck SIP Server. Set Server Type to VTO, configure the parameters, and then click Save.
Table 8-3 SIP server configuration
Parameter Description
IP Addr. VTO IP address.
Port
5060 by default when the VTO that you are logged into is acting as
the SIP server. Note that this needs to be set to the same port that
was set on the SIP server, if the VTO is not the SIP server.
5080 by default when the platform works as SIP server.
Username
Keep the default.
Password
SIP Domain
VDP by default.
Note: this setting must match the SIP Domain value set on the SIP server,
if this is not the SIP server.
SIP Server Username Web interface login username and password of the SIP server.
Note: this is the login for the VTO you are on, if it is the server. If this is not
the server, then the setting must match the login information of the SIP
server.
SIP Server Password

If other servers work as the SIP server:
Select the Server Type as needed, and then see the corresponding manual for details.