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What should we implement in the server in relation to audio/video calls?

You need to implement interfaces to integrate with LINE Planet Cloud. The callback APIs you need to implement for each call type are as follows:

  • 1-to-1 call
    • Notify callback (notify_cb): Callback API called by LINE Planet Cloud when connecting a 1-to-1 call
    • 1-to-1 Call Event callback (on_call_evt_cb): Callback API called by LINE Planet Cloud when a 1-on-1 call ends
  • Group call
    • Group Call Event callback (on_gcall_evt_cb): Callback API called by LINE Planet Cloud when a participant joins or leaves

For specifications related to the callbacks, see Server callback specification.

Note that LINE Planet does not perform push integration. If your service uses a mobile push notification, you must also send push notifications and manage device push tokens. General topology illustrates the concepts related to sending push notifications.