Call Transfer - Yealink SIP-T2 Series Administrator's Manual

Administrator's Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
Parameter features.forward.feature_key_sync.enable
It enables or disables the forward feature synchronization.
Description
Note: It works only if "features.feature_key_sync.enable" is set to 1 (Enabled).
0-Disabled
Permitted
Values
1-Enabled, server-based call forward is enabled. Server and local phone call forward are synchronized.
Default 1
Parameter account.X.forward.feature_key_sync.enable
It enables or disables the forward feature synchronization for account X.
Note: The value configured by this parameter takes precedence over that configured by the parameter
Description
"features.forward.feature_key_sync.enable". It works only if "account.X.feature_key_sync.enable" is set to
1 (Enabled) and it is not applicable to T48G/T46G/T42G/T41P/T29G/CP920 IP phones.
0-Disabled
Permitted
Values
1-Enabled, server-based call forward is enabled. Server and local phone call forward are synchronized.
Default Blank
features.forward.feature_key_sync.local_pro-
Parameter
cessing.enable
It enables or disables the local forward when call forward feature synchronization is enabled.
Note: It works only if "features.feature_key_sync.enable" and "features.forward.feature_key_sync.enable"
Description
are set to 1 (Enabled). The value configured by the parameter "account.X.features.forward.feature_key_
sync.local_processing.enable" takes precedence over that configured by this parameter.
0-Disabled, call forward is performed on the server side only.
Permitted
Values
1-Enabled, call forward is performed on both server side and locally.
Default 0
account.X.features.forward.feature_key_sync.local_
Parameter
processing.enable
It enables or disables the local forward when call forward feature synchronization is enabled.
Description
Note: It works only if "features.feature_key_sync.enable" and "features.forward.feature_key_sync.enable"
are set to 1 (Enabled).
0-Disabled, call forward is performed on the server side only.
Permitted
Values
1-Enabled, call forward is performed on both server side and locally.
Default Blank
[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/T27G,
X=1-6; for T40P/T40G/T23P/T23G, X=1-3; for T21(P) E2, X=1-2.

Call Transfer

Call transfer enables IP phones to transfer an existing call to a third party. For example, if party A is in an active call with
party B, party A can transfer this call to party C (the third party). Then, party B will begin a new call with party C, and
party A will disconnect.
Yealink IP phones support call transfer using the REFER method specified in
318
[1]
[1]
<y0000000000xx>.cfg
<MAC>.cfg
<y0000000000xx>.cfg
<MAC>.cfg
RFC 3515 and offer three types of transfer: