Yealink VC400 - Page 95

Configuring Network
79
System
Maximum
Connections
Required Ports for an
H.323 Call
Required Ports for a SIP
Call
VC120 without
8-way MCU
Two-way video call
with a
presentation and
an audio call
10 UDP
4 TCP
50000-50009
50000-50003
10 UDP
50000-50009
VC400/VC120
with 8-way
MCU
Eight-way video
call with a
presentation and
an audio call
58 UDP
16 TCP
50000-50057
50000-50015
58 UDP
50000-50057
Parameters for reserved ports on the system are described below:
Parameter
Description
Configuration Method
UDP Port Scope
Configures the range of the UDP
ports.
Valid values: 1-65535
Default range: 50000-50499
Note: SIP and H.323 calls share the
configured ports.
If you change this parameter, the
system will reboot to make the
change take effect.
Remote Control
Web User Interface
TCP Port Scope
Configures the range of the TCP
ports.
Valid values: 1-65535
Default range: 50000-50499
Note: SIP and H.323 calls share the
configured ports. If you change this
parameter, the system will reboot to
make the change take effect.
Remote Control
Web User Interface
To configure reserved ports via web user interface:
1. Click on Network->NAT/Firewall.
2. In the Reserve Port block, configure the UDP port range in the UDP Port Scope field.