Yealink SIP-T2 SERIES Administrator's Manual page 746

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Network->NAT/Firewall->TCP Port Scope
Phone User Interface:
For SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P) E2/CP860:
None
For SIP VP-T49G:
Menu->Advanced (default password: admin) ->Network->NAT->Reserved Port->TCP
Lowest Port
sip.max_tcp_port
Description:
Configures the maximum TCP port.
Note: The value of the maximum TCP port cannot be less than that of the minimum TCP
port. If you change this parameter, the IP phone will reboot to make the change take effect.
Web User Interface:
For SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P) E2/CP860:
Network->Advanced->TCP Port Scope
For SIP VP-T49G:
Network->NAT/Firewall->TCP Port Scope
Phone User Interface:
For SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P) E2/CP860:
None
For SIP VP-T49G:
Menu->Advanced (default password: admin) ->Network->NAT->Reserved Port->TCP
Highest Port
To configure reserved ports via web user interface:
Click on Network->Advanced.
1.
Enter the desired port scope in the UDP Port Scope field.
2.
722
Parameters Permitted Values Default
Integer from
50249
1024 to 65535