Yealink SIP-T2 SERIES Administrator's Manual page 750

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
network.static_nat.dynamic_addr
Description:
Displays the NAT public address automatically obtained from the Yealink-supplied server.
Note: It works only if the value of the parameter "network.static_nat.mode" is set to 2
(Auto). It is only applicable to SIP VP-T49G IP phones.
Web User Interface:
Network->NAT/Firewall->NAT Public IP Address
Phone User Interface:
Menu->Advanced (default password: admin) ->Network->NAT->NAT
Configuration->NAT Public IP Address
network.static_nat.effect_type
Description:
Configures the route traversal type.
0-Auto
1-Compulsory
If it is set to 0 (Auto), NAT works only when making a call to public network or receiving a
call from the public network.
If it is set to 1 (Compulsory), NAT works when you are in multi-level intranet network to
solve the one-way audio or video problem.
Note: It works only if the value of the parameter "network.static_nat.mode" is set to 1
(Manual) or 2 (Auto). It is only applicable to SIP VP-T49G IP phones.
Web User Interface:
Network->NAT/Firewall->Route Traversal
Phone User Interface:
Menu->Advanced (default password: admin) ->Network->NAT->NAT
Configuration->Route Traversal
To configure static NAT via web user interface:
Click on Network->NAT/Firewall.
1.
Select the desired value from the pull-down list of Static NAT.
2.
If you select Manual, enter the IP address or domain name in the NAT Public IP Address
field.
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Parameters Permitted Values
IP address or
domain name
0 or 1
Default
Blank
0