Scope:The following steps will allow you to setup Multicast Paging on both the sender and receiver Yealink phones. This will enable you to speak to receivers. All receivers must have the Handset connected to SIP Device in order for Mutlicast to auto answer.Requirements:Access to Yealink Phone's UIAccess to the Manager PortalHow to configure Yealink Phone as a Page SenderVia OverrideLog in to the Manager PortalGo to Inventory > Phone Hardware Click Edit for the device you would like to set upGo to Advanced > Overrides and enter the following:NOTE: Replace "X" with whichever line key number you would like to set up Paging on#Multicast Paging
linekey.X.type="24"
linekey.X.value="224.0.1.116:5001"
linekey.X.line="0"
linekey.X.label="Paging"
linekey.X.extension="0"
linekey.X.xml_phonebook="0"  5. Click Save and ResyncVia Web GUIObtain the IP address of the phone and log onto the web GUI.Select DSS Key.In the desired Line Key, select "Paging" from the Type dropdown menu.Enter 224.0.1.116:5001 on "Value" field.Enter the name under the "Label" field. This will be the name shown on the phone screen.Enter 0 under the Extension field. This is for the channel you will be used for paging. Click Confirm to accept the changes. A-Line key will appear on your phone screen. This is where you will be able to press on a key and talk to listeners.How to configure Yealink Phone as a Page ReceiverVia OverrideLog in to the Manager PortalGo to Inventory > Phone HardwareClick Edit for the device you would like to set upGo to Advanced > Overrides and enter the following:#Paging Receiver Setup
multicast.listen_address.1.label=""
multicast.listen_address.1.ip_address="224.0.1.116:5001"   5. Click Save and ResyncVia Web GUIGo to Directory > Multicast IPEnter 224.0.1.116:5001 under "Listening Address" Enter any name under the "Label" field. This will show as a caller ID when sender multicast to all listeners.The same channel you set up for the Sender. This will allow the Listening phone to receive the Sender's Page. In this case, set it to 0. Click Confirm.Barge PriorityBy default, incoming pages will cause active calls to be placed on hold. If you want phones to ignore multicast pages, you need to disable the paging priority setting for the receiving phones.  You can do this with the override below. In the example, replace x with the desired priority. If configured as 0, this setting will be disabled and all active calls will be configured as the highest prioritymulticast.receive_priority.priority="x"Otherwise, you can set the priority of each phone, and phones will answer the incoming multicast paging calls with a higher priority and ignore those with a lower priority.  In the example, replace x with the desired priority. multicast.receive_priority.enable="x"