Yealink SIP-T23, Руководство по комплектации

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Yealink IP Phones Auto Provisioning Guide
252
Parameter
Permitted
Values
Descriptions Web Setting Path
1-DNSTTL: the IP phone retries to send
requests to the primary server after the
timeout of the DNSTTL configured for the
server that the IP phone is registered to.
2-Registration: the IP phone retries to send
REGISTER requests to the primary server
when registration renewal.
3-duration: the IP phone retries to send
requests to the primary server after the
timeout defined by the parameter
“account.X.failback_timeout”.
The default value is 0.
For more information, refer to Server
Redundancy on Yealink IP Phones.
account.X.sip_server.Y.failback_timeout
(X ranges from 1 to 3, Y ranges from 1 to 2.)
Integer 0, from
60 to 65535
It configures the timeout (in seconds) for the IP
phone to retry to send requests to the primary
server after failing over to the current working
server for account X when the parameter
“account.X.sip_server.Y.failback_mode” is set
to 3 (duration).
If you set the parameter to 0, the IP phone will
not send requests to the primary server until a