Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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servers.
Diversion/History-Info
IP phones support the redirected call information sent by the SIP server with Diversion
header, per draft-levy-sip-diversion-08, or History-info header, per RFC 4244. The
Diversion/History-info header is used to inform the IP phone of a call’s history. For
example, when a phone has been set to enable call forward, the Diversion/History-info
header allows the receiving phone to indicate who the call was from, and from which
phone number it was forwarded.
Forward International
Forward international allows users to forward an incoming call to an international
telephone number (the prefix is 00). This feature is enabled by default.
Forward Emergency
Forward emergency allows the incoming calls from some authorized numbers not to be
forwarded when the call forward feature is enabled. The incoming call will not be
logged in the Forwarded Calls list. This feature is disabled by default.
Procedure
Call forward can be configured using the configuration files or locally.
Configure call forward in custom
mode.
Parameters:
account.X.always_fwd.enable
account.X.always_fwd.target
account.X.always_fwd.on_code
account.X.always_fwd.off_code
account.X.busy_fwd.enable
account.X.busy_fwd.target
account.X.busy_fwd.on_code
account.X.busy_fwd.off_code
account.X.timeout_fwd.enable
account.X.timeout_fwd.target
account.X.timeout_fwd.timeout
account.X.timeout_fwd.on_code
account.X.timeout_fwd.off_code
Specify the authorized numbers
when call forward is enabled.
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