A majority of Yealink phones support multicast paging, allowing you to broadcast a message to all phones within a single LAN subnet. They also have several common page adapter multicast addresses programmed in to allow for multicast servers to send audio to the phones.
This is currently a manual setup on the phone you wish to send audio from. By default, all Yealink phones already listen for the multicast pages.
Setup via Web Interface:
- Obtain the IP address of your phone by pressing the OK button while the phone is on the idle screen with no notifications.
- Enter the IP address into a web browser, and login to the phone (login credentials can be obtained from support).
- Navigate to the DSS Keys tab.
- For the key you wish to configure, set the following values:
- Type: Multicast Paging (Newer firmware revisions have changed the name to just "Paging")
- Value: 224.0.0.75:7243
- To send only to devices on the same physical network switch - Value: 234.3.2.1:2345
- Label: {desired label on screen}
- Line: N\A
- Extension: N\A
- Long Press the desired Line Key (DSS Key) to configure
- Set the follow values via the keypad:
- Type: Key Event
- Key Type: Multicast Paging
- Label: {desired label on screen}
- Value: 224.0.0.75.7243
- To send only to devices on the same physical network switch - Value: 234.3.2.1:2345
- Channel: 0 (where available to set)
- Press Save to confirm changes.
Once setup, pressing the Multicast Key will being the page audio. Receiving phones will provide a notification beep, and begin playing audio right away. Phones that are on a current call will not be interrupted by the page audio, but will get an incoming page notification similar to call waiting.
As Yealink uses a common standard for multicast, many other multicast capable devices are compatible with some configuration of the multicast address. Unfortunately, this does not include Polycom phones, as they implement a proprietary multicast standard to manage groups.