Yealink SIP-T4X IP Phones Auto Provisioning Guide
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queries for the transport protocol, port
and IP address.
The default value is 0.
account.X.nap
tr_build =
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.)
0 or 1
I t specifies the transport protocol the
phone constructs the SRV query for
when no NAPTR records are returned.
0-UDP
1-Multiple Types
The default value is 0.
account.X.fall
back.redunda
ncy_type =
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.)
0 or 1
It configures the registration mode for
the phone in fallback mode.
0-Concurrent registration: the phone
registers to the working server and
fallback server at the same time.
1-Successive registration: the phone
registers to the working server first.
When the working server fails, the
phone registers to the fallback server.
The default value is 0.
account.X.fall
back.timeout
=
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.)
Integer
from 10 to
2147483647
It configures the time interval (in
seconds) for the phone to detect
whether the working server is
available by sending the registration
request after the fallback server takes
over the call control.
It is only applicable to the successive
registration mode.
The default value is 120.
account.X.sip_
server.Y.failba
ck_mode =
(SIP-T46G: X
ranges from 1
to 6.
SIP-T42G/T41P:
X ranges from
1 to 3.
Y ranges from
0, 1, 2, or 3
It configures the way in which the
phone fails back to the primary server
for call control when in the failover
mode.
0-newRequests: all requests are
forwarded to the primary server first,
regardless of the secondary server
that was used.
1-DNSTTL: the phone will retry to use
the primary server after the timeout of
Summary of Contents for SIP-T4X
Page 1: ...Table of Contents i...
Page 2: ......
Page 8: ...Yealink SIP T4X IP Phones Auto Provisioning Guide 2...
Page 21: ...Getting Started 15...
Page 35: ...Obtaining the Provisioning Server Address 29...
Page 41: ...Update Mode 35...
Page 47: ...Appendix 41...
