Yealink SIP-T2XP, Руководство администратора

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Administrator’s Guide for SIP-T2xP IP Phones
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secondary server backs up a primary server when the primary server fails and offers
the same functionality as the primary server.
Fallback Server: Server 2 is configured with the IP address of the fallback server. For
example, 192.168.1.15. A fallback server offers less functionality than the working server.
Phone Registration
Registration methods of the fallback mode:

Concurrent registration: The IP phone registers to two SIP servers (working server
and fallback server) at the same time. In a failure situation, a fallback server can
take over the basic calling capability, but without some of the advanced features
offered by the working server (default registration method).

Successive registration: The IP phone only registers to one server at a time. The IP
phone first registers to the working server. In a failure situation, the IP phone
registers to the fallback server.
When registering to the working server, the IP phone must always register to the primary
server first except in failover conditions. When the primary server registration is
unavailable, the secondary server will serve as the working server.
For more information on server redundancy, refer to
Server Redundancy on Yealink IP
Phones
, available online:
http://www.yealink.com/DocumentDownload.aspx?CateId=142&flag=142 .
Procedure
Server redundancy can be configured using the configuration files or locally.
Configuration File <MAC>.cfg
Configure the server redundancy on the IP
phone.
Parameters:
account.X.sip_server.Y.address
account.X.sip_server.Y.port
account.X.sip_server.Y.expires
account.X.sip_server.Y.retry_counts
Fallback Mode:
account.X.fallback.redundancy_type
account.X.fallback.timeout
Failover Mode:
account.X.sip_server.Y.failback_mode
account.X.sip_server.Y.failback_timeout
account.X.sip_server.Y.register_on_enable
Local
Web User
Configure the server redundancy on the IP