Yealink SIP-T48G Administrator's Manual page 422

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
four configuration options for incoming intercom calls:
Accept Intercom
Accept Intercom allows the IP phone to answer an incoming intercom call.
Intercom Mute
Intercom Mute allows the IP phone to mute the microphone for incoming intercom calls.
Intercom Tone
Intercom Tone allows the IP phone to play a warning tone before answering an intercom
call.
Intercom Barge
Intercom Barge allows the IP phone to automatically answer an incoming intercom call
while an active call is in progress. The active call will be placed on hold.
If you disable this feature, the IP phone will handle an incoming intercom call like a
waiting call while there is already an active call on the IP phone.
Procedure
Incoming intercom calls can be configured using the configuration files or locally.
Configuration File
Local
Details of Configuration Parameters:
features.intercom.allow
402
<y0000000000xx>.cfg
Web User Interface
Phone User Interface
Parameters
Configure incoming intercom call
feature.
Parameters:
features.intercom.allow
features.intercom.mute
features.intercom.tone
features.intercom.barge
Configure incoming intercom call
feature.
Navigate to:
http://<phoneIPAddress>/servlet
?p=features-intercom&q=load
Configure incoming intercom call
feature.
Permitted Values
0 or 1
Default
1