Yealink SIP-T4X, Provisioning Manual, Page: 142 / 148

Yealink SIP-T4X IP Phones Auto Provisioning Guide
136
SIP-T42G/T41P:
X ranges from
1 to 3. )
account.X.nat.
stun_server =
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.)
IP address
or domain
name
It configures the domain name or IP
address of the STUN server for account
X.
The default value is blank.
Account->Register
->STUN Server
account.X.nat.
stun_port =
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.)
Integer
from 1 to
65535
It configures the port of the STUN
server for account X.
The default value is 3478.
Account->Register
->STUN Server
->Port
account.X.nat.
udp_update_e
nable =
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.)
0, 1, 2 or 3
It configures the type of keep alive
signal sent by the phone to check that
the link between the phone and the
sever is operating.
0-Disabled
1-Default: the phone sends UDP
packets to the server.
2-Options: the phone sends SIP
OPTION packets to the server.
3-Notify: the phone sends SIP NOTIFY
packet to the server.
The default value is 1.
Account->
Advanced->Keep
Alive Type
account.X.nat.
udp_update_ti
me =
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.)
Integer
from 15 to
2147483647
It configures the interval (in seconds)
for the phone to send keep alive
signal.
The default value is 30.
Account->
Advanced->Keep
Alive Interval
(Seconds)