Yealink CD860, Administrator'S Manual

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Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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Required ports for a SIP two-way call:
Call Type Number of Required Ports
Video 6 UDP ports
Voice 2 UDP ports
Each additional video participant requires 6 UDP ports.
Each additional audio participant requires 2 UDP ports.
The following table lists the number of UDP ports needed for the IP phone. This
information can help you to determine the range of port number to be entered in the
Reserved Port field.
Phone Maximum Connections
Required Ports for a SIP
Call
SIP
VP-T49G Three-way video call and two
audio call
16 UDP 50000-50015
Procedure
Reserved ports can be configured using the configuration files or locally.
Configuration File <y0000000000xx>.cfg
Configure the range of the
UDP ports.
Parameters:
sip.min_udp_port
sip.max_udp_port
Configure the range of the TCP
ports.
Parameters:
sip.min_tcp_port
sip.max_tcp_port
Local Web User Interface
Configure the range of the
UDP ports.
Configure the range of the TCP
ports.
Navigate to:
http://<phoneIPAddress>/serv
let?m=mod_data&p=network
-adv&q=load