zammad/test/data/telegram/channel/voice.json

{
  "update_id": 954691818,
  "channel_post": {
    "chat": {
      "id": 123456789,
      "title": "Bot Channel",
      "type": "channel"
    },
    "message_id": 12,
    "date": 1566318851,
    "voice": {
      "duration": 1,
      "mime_type": "audio/ogg",
      "file_id": "voicefileid",
      "file_size": 1280
    }
  },
  "bid": "0987654321",
  "callback_token": "FidczWOKOLysIQ"
}