Yealink VC800 - Page 127

Configuring Call Preferences
113
Parameter
Description
Configuration Method
 Compulsory—compulsory use
H.235 for media encryption in
H.323 calls.
Default: Disabled
For more information, refer to H.235
on page 242.
Protocol Monitor
Port
Specifies the port for the H.323
protocol.
Valid values: 0-65535
Default 1720.
Note: It is only applicable to H.323 IP
call.
Web User Interface
Local Early Media
Enables or disables local early media
feature on the system.
Default: Disabled.
If it is set to Enabled, the system will
send video SDP twice during a call to
solve the compatibility between
Yealink device and certain devices.
Web User Interface
To configure H.460 firewall traversal for H.323 via web user interface:
1. Click on Account->H.323.
2. Select Manual from the pull-down list of Gatekeeper Mode.
3. Enter the IP address and port number of the H.460 server in Gatekeeper IP Address and
Port fields.