Multicast paging – Yealink SIP-T41P User Manual
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User Guide for the SIP-T41P IP Phone
104
Accept Intercom
You can enable or disable the phone to automatically answer an incoming intercom call. 
If Accept Intercom is enabled, the phone automatically answers an incoming intercom 
call. If Accept Intercom is disabled, the phone rejects incoming intercom calls and sends 
a busy message to the caller. Accept Intercom is enabled by default. 
Note
Intercom Mute
You can mute or un-mute the microphone on the phone for intercom calls automatically. 
If Intercom Mute is enabled, the microphone is muted for intercom calls. If Intercom 
Mute is disabled, the microphone works for intercom calls. Intercom Mute is disabled by 
default. 
Intercom Tone
You can enable or disable the phone to play a warning tone when receiving an 
intercom call. If Intercom Tone is enabled, the phone plays a warning tone before 
answering the intercom call. If Intercom Tone is disabled, the phone automatically 
answers the intercom call without warning. Intercom Tone is enabled by default. 
Intercom Barge
You can enable or disable the phone to automatically answer an incoming intercom call 
while there is already an active call on the phone. If Intercom Barge is enabled, the 
phone automatically answers the intercom call and places the active call on hold. If 
Intercom Barge is disabled, the phone handles an incoming intercom call like a waiting 
call. Intercom Barge is disabled by default. 
You can use multicast paging to quickly and easily forward time sensitive 
announcements out to people within the multicast group. You can configure a multicast 
paging key on the phone, which allows you to send a Real Time Transport Protocol (RTP) 
stream to the pre-configured multicast address(es) without involving SIP signaling. You 
can configure the phone to receive an RTP stream from pre-configured multicast 
listening address(es) without involving SIP signaling. You can specify up to 10 multicast 
listening addresses. 
Your administrator can set a period of delay time before the phone automatically 
answers intercom calls. Contact your system administrator for more information. 
