Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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[1]
X is the account ID. For T54S/T48S/T48G/T46S/T46G/T29G, X=1-16; for T52S/T42G/T42S, X=1-12; for
T41P/T41S/T27P/T27G, X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2; for T19(P) E2, X=1.
[2]
Y is the server ID. Y=1-2.
Failover Server Redundancy Configuration
The following table lists the parameters you can use to configure failover server redundancy.
account.X.sip_server.Y.register_on_enable
[1][2]
It enables or disables the IP phone to send registration requests to the secondary
server when encountering a failover.
0-Disabled, the IP phone will not attempt to register to the secondary server, since the
phone assumes that the primary and secondary servers share registration information.
So the IP phone will directly send the requests to the secondary server.
1-Enabled, the IP phone will register to the secondary server first, and then send the
requests to it.
sip.skip_redundant_failover_addr
It enables or disables the IP phone only to send requests to the servers with different
IP addresses when encountering a failover.
account.X.sip_server.Y.expires
[1][2]
It configures the registration expiration time (in seconds) of SIP server Y.
Example:
account.1.sip_server.1.expires = 3600
Integer from 30 to 2147483647
Account->Register->SIP Server Y->Server Expires
account.X.sip_server.Y.retry_counts
[1][2]
It configures the retry times for the IP phone to resend requests when the SIP server Y
is unavailable or there is no response from the SIP server Y.
Example:
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