Yealink SIP-T19 E2 T4 Series, Руководство администратора

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Configuring Advanced Features
661
Parameters Permitted Values Default
a failover event occurs with the current working server.
If you set the parameter from 1 to 59, the timeout will be 60 seconds.
Note:
It works only if the value of the parameter “account.X.sip_server.Y.failback_mode” is
set to 3 (duration).
Web User Interface:
None
Phone User Interface:
None
account.X.sip_server.Y.failback_subscribe.enable
[1]
(Y ranges from 1 to 2)
0 or 1 0
Description:
Enables or disables the IP phone to retry to re-subscribe after registering to the secondary
server with different IP address for a specific account when encountering a failover.
0
-Disabled
1
-Enabled, the IP phone will immediately re-subscribe to the secondary server, for ensuring
the normal use of the features associated with subscription (for example, BLF, SCA).
Note
: It works only if the value of the parameter “account.X.sip_server.Y.failback_mode” is
set to 1, 2 or 3.
Web User Interface:
None
Phone User Interface:
None
account.X.outbound_proxy.Y.failback_mode
[1]
(Y ranges from 1 to 2)
0, 1, 2 or 3 -1
Description:
Configures the failback mode for the IP phone to retry the primary outbound proxy server in
failover for a specific account.
If it is set to
-1
, the IP phone will invoke the value of the parameter
“account.X.sip_server.Y.failback_mode” to take effect.
0
-newRequests: all requests are sent to the primary outbound proxy server first, regardless
of the last server that was used. If the primary outbound proxy server does not respond
correctly, the IP phone will try to send requests to the secondary outbound proxy server.
1
-DNSTTL: the IP phone will send requests to the last registered outbound proxy server first.
If the TTL for the DNS A records on the registered outbound proxy server expires, the phone
will retry to send requests to the primary outbound proxy server.