Yealink SIP-T2

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Default
0
Parameter
account.X.features.forward.feature_key_sync.local_processing.enable
[1]
<MAC>.cfg
Description
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_syn-
c.enable” are set to 1 (Enabled).
Permitted
Values
0-Disabled, call forward is performed on the server side only.
1-Enabled, call forward is performed on both server side and locally.
Default
Blank
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42U/T42G/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T33P/T33G, X=1-4; for
T40P/T40G/T23P/T23G, X=1-3; for T31P/T31G/T31/T21(P) E2, X=1-2.
Call Transfer
Call transfer enables the 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 phones support call transfer using the REFER method specified in RFC 3515 and offer three types of trans-
fer:
l
Blind Transfer -- Transfer a call directly to another party without consulting. Blind transfer is implemented by a
simple REFER method without Replaces in the Refer-To header.
l
Semi-attended Transfer -- Transfer a call after hearing the ringback tone. The semi-attended transfer is imple-
mented by a REFER method with Replaces in the Refer-To header.
The semi-attended transfer is applicable to that when users do not want to consult with the third party after hear-
ing the ringback tone, and the third party has not answered the call, the users can cancel the transfer or imple-
ment the transfer.
l
Attended Transfer (Consultative Transfer) -- Transfer a call with prior consulting. Attended transfer is imple-
mented by a REFER method with Replaces in the Refer-To header.
Topics
Call Transfer Configuration
Transfer Mode for Dsskey Configuration
Call Transfer Configuration
The following table lists the parameters you can use to configure call transfer.
Parameter
transfer.semi_attend_tran_enable <y0000000000xx>.cfg
Description
It enables or disables the semi-attended transfer.
Permitted
Values
0-Disabled, when the user presses the Trans/Transfer soft key after hearing the ringback tone, the
phone will blind transfer the call.
1-Enabled, when the user presses the Trans/Transfer soft key after hearing the ringback tone, the
phone will transfer the call after the transferee answers the call.
Default
1
Web UI
Features > Transfer > Semi-Attended Transfer
Parameter
account.X.transfer_refer_to_contact_header.enable
[1]
<MAC>.cfg
Description
It enables or disables the Refer-To header to use the information of the Contact header in the second