Yealink SIP-T2 Series Provisioning Manual page 204

Yealink IP Phones Auto provisioning Guide
Permitted
Parameter
1 to 3.
SIP-T20P: X
ranges from 1
to 2)
account.X.nat.
stun_port =
(SIP-T28P: X
ranges from 1
to 6.
Integer from
SIP-T26P/T22P:
X ranges from
1 to 3.
SIP-T20P: X
ranges from 1
to 2)
account.X.nat.
udp_update_e
nable =
(SIP-T28P: X
ranges from 1
to 6.
0, 1, 2 or 3
SIP-T26P/T22P:
X ranges from
1 to 3.
SIP-T20P: X
ranges from 1
to 2)
account.X.nat.
udp_update_ti
me =
(SIP-T28P: X
Integer from
ranges from 1
to 6.
2147483647
SIP-T26P/T22P:
X ranges from
1 to 3.
SIP-T20P: X
194
Values
It configures the port of the STUN
server for account X.
1024 to
65000
The default value is 3478.
It configures the type of keep-alive
packets sent by the phone to the NAT
device to keep the communication port
open so that NAT can continue to
function for account X.
0-Dsiabled
1-Default: the phone sends UDP
packets to the server.
2-Option: the phone sends SIP OPTION
packets to the server.
3-Notify: the phone sends SIP NOTIFY
packets to the server.
The default value is 1.
It configures the keep-alive interval (in
seconds) for account X.
15 to
The default value is 30.
Descriptions Web Setting Path
Account->Register
->STUN Server
->Port
Account->
Advanced->Keep
Alive Type
Account->
Advanced->Keep
Alive Interval
(Seconds)