Yealink SIP-T2 SERIES Administrator's Manual page 751

Details of Configuration Parameters:
Parameters
sip.min_udp_port
Description:
Configures the minimum UDP port.
Note: If you change this parameter, the IP phone will reboot to make the change
take effect.
Web User Interface:
Network->Advanced->UDP Port Scope
Phone User Interface:
None
sip.max_udp_port
Description:
Configures the maximum UDP port.
Note: The value of the maximum UDP port cannot be less than that of the minimum
UDP port. If you change this parameter, the IP phone will reboot to make the
change take effect.
Web User Interface:
Network->Advanced->UDP Port Scope
Phone User Interface:
None
sip.min_tcp_port
Description:
Configures the minimum TCP port.
Note: If you change this parameter, the IP phone will reboot to make the change
take effect.
Web User Interface:
Network->Advanced->TCP Port Scope
Phone User Interface:
None
sip.max_tcp_port
Configuring Advanced Features
Permitted Values Default
Integer from
50000
1024 to 65535
Integer from
50249
1024 to 65535
Integer from
50000
1024 to 65535
Integer from
50249
1024 to 65535
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