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Document/VoiceCall.md

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+# Setup
+- Before you use it, properly initialize the module (`@discordjs/voice` patch)
+
+```js
+new Client({
+  patchVoice: true, // Enable default
+})
+```
+
+# Usage: Call DM / Group DM
+
+```js
+const dmChannel = client.channels.cache.get('id');
+/* or
+const dmChannel = User.dmChannel || await User.createDM();
+*/
+const connection = await dmChannel.call();
+/* Return @discordjs/voice VoiceConnection */
+```
+
+# Play Music using `play-dl`
+
+```js
+const connection = await message.member.user.dmChannel.call();
+const play = require('play-dl');
+const {
+	createAudioPlayer,
+	createAudioResource,
+} = require('@discordjs/voice');
+let stream = await play.stream('youtube link');
+let resource = createAudioResource(stream.stream, {
+	inputType: stream.type,
+});
+let player = createAudioPlayer({
+	behaviors: {
+		noSubscriber: NoSubscriberBehavior.Play,
+	},
+});
+player.play(resource);
+connection.subscribe(player);
+```