Phone Registration - Yealink SIP-T48G Administrator's Manual

Administrator's Guide for SIP-T2_Series_T4_Series IP Phones

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
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
Local
388
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
<MAC>.cfg
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
Configure the server redundancy on the IP
phone.
Web User
Navigate to:
Interface
http://<phoneIPAddress>/servlet?p=account
-register&q=load&acc=0
Server Redundancy on Yealink IP