Yealink SIP-T2 Series Administrator's Manual page 54

Administrator's Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
static.sip.nat_turn.server = 218.107.220.202
Note: It works only if "static.sip.nat_turn.enable" is set to 1 (Enabled).
Permitted
IP Address or Domain Name
Values
Default Blank
Web UI Network->NAT->TURN->TURN Server
Parameter static.sip.nat_turn.port
It configures the port of the TURN (Traversal Using Relays around NAT) server.
Example:
Description
static.sip.nat_turn.port = 3478
Note: It works only if "static.sip.nat_turn.enable" is set to 1 (Enabled).
Permitted
Integer from 1024 to 65535
Values
Default 3478
Web UI Network->NAT->TURN->TURN Port (1~65535)
Parameter static.sip.nat_turn.username
It configures the user name to authenticate to TURN (Traversal Using Relays around NAT) server.
Example:
Description
static.sip.nat_turn.username = admin
Note: It works only if "static.sip.nat_turn.enable" is set to 1 (Enabled).
Permitted
String
Values
Default Blank
Web UI Network->NAT->TURN->User Name
Parameter static.sip.nat_turn.password
It configures the password to authenticate to the TURN (Traversal Using Relays around NAT) server.
Example:
Description
static.sip.nat_turn.password = yealink1105
Note: It works only if "static.sip.nat_turn.enable" is set to 1 (Enabled).
Permitted
String
Values
Default Blank
Web UI Network->NAT->TURN->Password
[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for T41P/T41S/T27G,
X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2; for T19(P) E2/CP920, X=1.
[2]
If you change this parameter, the IP phone will reboot to make the change take effect.
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[2]
[2]
[2]
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<y0000000000xx>.cfg
<y0000000000xx>.cfg