Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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requests to the primary outbound proxy server.
-1, the IP phone will invoke “account.X.sip_server.Y.failback_mode” to take effect.
account.X.outbound_proxy.Y.failback_timeout
[1][2]
It configures the timeout (in seconds) for the phone to retry to send requests to the
primary outbound proxy server after failing over to the current working server.
If you set the parameter to 0, the IP phone will not send requests to the primary
outbound proxy server until a failover event occurs with the current working server.
Note: It works only if “account.X.outbound_proxy.Y.failback_mode” is set to 3
(duration).
0, Integer from 60 to 65535
-1, the IP phone will invoke “account.X.sip_server.Y.failback_timeout” to take effect.
account.X.outbound_proxy.Y.failback_subscribe.enable
[1][2]
It enables or disables the IP phone to retry to re-subscribe after registering to the
secondary outbound proxy server with different IP addresses when encountering a
failover.
Note: It works only if “account.X.outbound_proxy.Y.failback_mode” is set to 1, 2 or 3.
0-Disabled
1-Enabled, the IP phone will immediately re-subscribe to the secondary outbound
proxy server, for ensuring the normal use of the features associated with subscription
(for example, BLF, SCA).
-1, the IP phone will invoke “account.X.sip_server.Y.failback_subscribe.enable” to take
effect.
account.X.sip_server.Y.outbound_proxy_enable
[1][2]
It enables or disables the IP phone to use outbound proxy server address configured
by “account.X.outbound_proxy.Y.address”.
Note: It works only if “account.X.outbound_proxy_enable” is set to 1 (Enabled).
[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.
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