Yealink SIP-T4U Series

Advanced Features
460
Description
It configures the value of the Call-Info header for intercom feature.
The value format likes: <sip:XXX (X can be any value)>; answer-after=0.
Note: If both Call-Info header and Alert-Info header (defined by the parameter "account.X.alert_info")
are configured, the Call-Info header has a higher priority than the Alert-Info header.
Permitted
Values
String within 256 characters
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/T42G/T42U/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; for T19(P) E2/CP920, X=1.
Incoming Intercom Configuration
The IP phone can process incoming calls differently depending on settings.
The following table lists the parameters you can use to configure incoming intercom.
Parameter
features.intercom.allow <y0000000000xx>.cfg
Description
It enables or disables the phone to answer an incoming intercom call.
Permitted
Values
0-Disabled, the phone will handle an incoming intercom call like a normal incoming call.
1-Enabled, the phone will automatically answer an incoming intercom call.
Default
1
Web UI
Features > Intercom > Intercom Allow
Phone UI
Menu > Features > Intercom > Intercom Allow
Parameter
features.intercom.mute <y0000000000xx>.cfg
Description
It enables or disables the phone to mute the microphone when answering an intercom call.
Note: It works only if “features.intercom.allow” and "features.allow_mute" are set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled, the microphone is muted for intercom calls, and then the other party cannot hear you.
Default
0
Web UI
Features > Intercom > Intercom Mute
Phone UI
Menu > Features > Intercom > Intercom Mute
Parameter
features.intercom.tone <y0000000000xx>.cfg
Description
It enables or disables the phone to play a warning tone when answering an intercom call.
Note: It works only if “features.intercom.allow” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Features > Intercom > Intercom Tone
Phone UI
Menu > Features > Intercom > Intercom Tone
Parameter
features.intercom.barge <y0000000000xx>.cfg