Network Configurations
50
Values
Default
5060
Web UI
Settings > SIP > Local SIP Port
Parameter sip.tls_listen_port
<y0000000000xx>.cfg
Description
It specifies the local TLS listen port.
If it is set to 0, the phone will not listen to the TLS service.
Permitted
Values
0, Integer from 1024 to 65535
Default
5061
Web UI
Settings > SIP > TLS SIP Port
Reserved Ports
By default, the phone communicates through UDP ports in the 50000 - 50249 range for video and voice control.
The phone uses only a small number of these ports during a call. The exact number depends on the number of par-
ticipants in the call, the protocol used, and the number of ports required for the type of call: video or voice.
It is not applicable to CP960 phones.
Topics
Guidelines for Determining the Range of Port Numbers
Reserved Ports Configuration
Guidelines for Determining the Range of Port Numbers
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.
Call Type
Number of Required Ports for T58
Number of Required Ports for VP59
Video
4 UDP ports
8 UDP ports (4 UDP ports when not
using content sharing)
Voice
2 UDP ports
2 UDP ports
Each additional video participant requires 4 UDP ports.
Each additional audio participant requires 2 UDP ports.
Use the following information as a guide when determining the range of port numbers.
Phone
Maximum Connections
Required Ports for a SIP Call
VP59/T58A
Three-way video call and
seven audio-only calls
26 UDP
50000-50025
Related Topic
Reserved Ports Configuration
The following table lists the parameters you can use to configure reserved ports.
Summary of Contents for One Talk CP960
Page 1: ......