Call Features99l 1 to 25: Broadcasts are sent to channel 1 to 25. We recommend that you specify these channels when broadcastingwith Polycom IP phones which have 25 channels you can listen to.l 26 to 30: Broadcasts are sent to channel 26 to 30. We recommend that you specify these channels when broad-casting with Yealink IP phones running firmware version 81 or later.Note that all IP phones that you want to include in the multicast paging group need to be in the same network, since abroadcast is used. The IP phone can only send/receive broadcasts to/from the listened channels. Other channels’broadcasts will be ignored automatically by the IP phone.TopicsSending Multicast PagingReceiving Multicast PagingManaging a Paging CallSending Multicast PagingYealink IP phone supports up to 31 groups for paging. You can assign a label to each group to identify the phones inthe group, such as All, Sales, or HR.You can set a line key as Multicast Paging key or Paging list key on the phone, which allows you to send announce-ments to the phones with pre-configured multicast address(es) on specific channel(s).NoteMulticast RTP is one way only from the sender to the multicast address(es) (receiver). For outgoing RTP multicasts, all otherexisting calls on the phone will be placed on hold.TopicsSetting a Multicast Paging KeySetting a Paging List KeySetting a Paging GroupDeleting a Paging GroupSending a Paging by a Multicast Paging KeySending Pages by a Paging List KeySetting a Multicast Paging KeyYou can set a Multicast Paging key for a paging group, which allows you to send announcements quickly on the idlescreen.Before You BeginGet the multicast IP address and port number from your system administrator.Procedure1. Navigate to Menu->Features->DSS Keys.2. Select a desired line key.3. Select Key Event from the Type field.4. Select Multicast Paging from the Key Type field.5. (Optional.) Enter the paging group name in the Label field.6. Enter the multicast IP address and port number (for example, 224.5.6.20:10008) in the Value field.7. Enter the desired channel between 0 and 30 in the Channel field.8. Press Save.
