Yealink VC120 - Restricting Reserved Ports

Administrator’s Guide for Yealink Video Conferencing Systems
78
Description
Port Range
Port Type
HTTPS (Optional)
443
TCP
Restricting Reserved Ports
By default, the system communicates through TCP and UDP ports in the 50000 - 54999 range
for video, voice, presentations, and camera control. The system uses only a small number of
these ports during a call. The exact number depends on the number of participants in the call,
the protocol used, and the number of ports required for the type of call: video or voice.
To minimize the number of UDP and TCP ports that are available for communication, you can
restrict the ports range
The following tables identify the number of ports required per connection by protocol and the
type of call.
Required ports for an H.323 two-way call:
Call Type
Number of Required Ports
Video
8 UDP ports (6 if presentation is disabled)
2 TCP ports
Voice
2 UDP ports
2 TCP ports
Each additional video participant requires 8 UDP ports and 2 TCP ports.
Each additional audio participant requires 2 UDP ports and 2 TCP ports.
Required ports for a SIP two-way call:
Call Type
Number of Required Ports
Video
8 UDP ports (5 if presentation is disabled)
Voice
2 UDP ports
Each additional video participant requires 8 UDP ports.
Each additional audio participant requires 2 UDP ports.
Make sure at least 200 TCP ports and 200 UDP ports are reserved for VC400&VC120. Use the
following information as a guide when determining the range of port numbers.
System
Maximum
Connections
Required Ports for an
H.323 Call
Required Ports for a SIP
Call
VC400 without
8-way MCU
Four-way video
call with a
presentation and
an audio call
26 UDP
8 TCP
50000-50025
50000-50007
26 UDP
50000-50025