Multicast Paging - Yealink SIP-T42G User Manual

Picking up an Incoming Call of the Target Extension
When the target extension receives an incoming call, the intercom key LED of the target
extension will flash green. If you configure the directed call pickup code in advance, you can pick
up the target extension's incoming call by pressing the intercom key. You can configure the
directed call pickup code when configuring an intercom key. For more information, refer to
Configuring an Intercom Key
If you enable visual alert feature, you can also pick up the target extension's incoming call by
pressing the DPickup soft key. To use the DPickup soft key to pick up the call, the call pickup
code can only be configured on a global or per-line basis via web user interface. For more
information, refer to refer to
Configuring Directed Call Pickup Code
To pick up an incoming call when the monitored phone is ringing:
Press the intercom key.
1.
The incoming call of the target extension is answered on the IP phone.
If the directed call pickup code is not configured, the phone will place a call to the target
Note
extension instead of picking up an incoming call of the target extension when you press the
intercom key.

Multicast Paging

You can use multicast paging to quickly and easily broadcast time sensitive announcements to
users who are listening to a specific multicast group. You can specify up to 31 (0-30) channels
for each group. You can configure a multicast paging key or the paging list 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 31 multicast listening addresses.
Yealink IP phone supports the following 31 channels:
0: It is the default channel. This channel is for compatibility with the Yealink IP phones

running firmware version 80 or prior and third-party devices.
1 to 25: These channels are for compatibility with the Polycom IP phones.

26 to 30: These channels are used for separate communication among the Yealink IP

phones running firmware version 81 or later.
The IP phones will automatically ignore all incoming multicast paging calls on the different
channel.
on page 130.
Configuring Visual and Audio Alert for BLF pickup
on page 121.
Advanced Phone Features
on page 120 and
133