Yealink SIP-T4U Series

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Note: It works only if “features.direct_ip_call_enable" is set to 1 (Enabled). The phone cannot auto-
matically answer the incoming IP call when the IP phone is in a call or dialing even if IP call auto
answer is enabled.
Permitted
Values
0-Disabled
1-Enabled, the phone can automatically answer the IP call.
Default
0
Web UI
Features > General Information > IP Direct Auto Answer
Parameter
features.auto_answer.first_call_only <y0000000000xx>.cfg
Description
It enables or disables the phone to only automatically answer the incoming call when the phone is
idle.
Note: It works only if “account.X.auto_answer” or “features.ip_call.auto_answer.enable” is set to 1
(Enabled).
Permitted
Values
0-Disabled. If there is an incoming call arrived when the phone is in a call or dialing, the phone will
automatically answer after you end the current call or cancel the dialing.
1-Enabled. The phone can only automatically answer the incoming call arrived when the phone is
idle. If there is an incoming call arrived when the phone is in a call or dialing, you have to manually
pick up the incoming call.
Default
1
Parameter
features.auto_answer_delay <y0000000000xx>.cfg
Description
It configures the delay time (in seconds) before the phone automatically answers an incoming call.
Note: For the call coming from a SIP account, it works only if “account.X.auto_answer” is set to 1
(Enabled).
Permitted
Values
T48G/T46G/T42G/T41P/T29G:
Integer from 1 to 4
Other Phones:
Integer from 1 to 60
Default
1
Web UI
Features > General Information > Auto Answer Delay
Parameter
features.auto_answer_tone.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to play a warning tone when an incoming call is automatically
answered.
Note: For the call coming from a SIP account, it works only if “account.X.auto_answer” is set to 1
(Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Features > General Information > Enable Auto Answer Tone
Parameter
features.auto_answer.ring_type <y0000000000xx>.cfg
Description
It configures a ring tone the phone plays before the incoming call is automatically answered.
Note: It works only if “features.auto_answer_tone.enable” is set to 1 (Enabled).
Permitted
Values
0 (beep tone)