Keep Alive Configuration - Yealink SIP-T3 Administrator's Manual

Administrator's Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
Web UI Network > NAT > TURN > TURN Port (1024~65535)
Parameter static.sip.nat_turn.username
It configures the user name to authenticate to the TURN server.
Description
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 (Username)
Parameter static.sip.nat_turn.password
It configures the password to authenticate to the TURN server.
Description
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 T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T53C/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T33P/T33G, X=1-4; for
T40P/T40G/T23P/T23G, X=1-3; for T31P/T31G/T31/T21(P) E2, X=1-2; for T30P/T30/T19(P)
E2/CP920/CP925/CP935W, X=1.

Keep Alive Configuration

Yealink phones can send keep-alive packets to the NAT device for keeping the communication port open.
The following table lists the parameters you can use to configure keep alive.
Parameter account.X.nat.udp_update_enable
Description It sets the type of keep-alive packets sent by phone.
0-Disabled
1-Default (the phone sends the corresponding packets according to the transport protocol)
Permitted
Values
2-Options (the phone sends SIP OPTIONS packets to the server)
3-Notify (the phone sends SIP NOTIFY packets to the server)
Default 1
Web UI Account > Advanced > Keep Alive Type
Parameter account.X.nat.udp_update_time
It configures the interval (in seconds) at which the phone sends a keep-alive package.
Description
Note: It works only if "account.X.nat.udp_update_enable" is set to 1, 2 or 3.
Permitted
Integer from 0 to 3600
Values
Default 30
Web UI Account > Advanced > Keep Alive Interval(Seconds)
61
<y0000000000xx>.cfg
<y0000000000xx>.cfg
[1]
<MAC>.cfg
[1]
<MAC>.cfg