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I am trying to build a simple chat application. But it requires Voice calls functionality to other users. I would be using Firebase for messaging. Does Firebase have Voice calls support? I can configure external SIP

AL.
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Vikas Sharma
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2 Answers2

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If you want to create voice call or video call app, maybe you can use WebRTC technology.

WebRTC is a free, open project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs.

There is a nice presentation here

Faruk
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Java/Kotlin solution

If you want to create voice calling system using firebase,

Sending

Use AudioRecord class for getting audiosample then use Base64.encoder to convert audioSample(byte[]) to String. Now you can send the converted string to Database.

Receiving

Initiate AudioTrack get the String from database, use Base64.decoder to convert String to byte[], now you can write the byte[] to Audiotrack for playback.

Mises
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Helium Cloud Gaming
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  • Why, if he can use WebRTC without database? – Mises Mar 07 '23 at 03:10
  • I don't know, Webrtc available for java or not, and the performance of my technique and webrtc are same, why do we add extra libs and material if we can create on own. – Helium Cloud Gaming Mar 08 '23 at 04:14
  • Why you didn't explicit that it is Java technology in your answer? Please edit your answer and explicit that this is a Java solution. – Mises Mar 08 '23 at 05:37
  • Never mind, I edited it, please check are it is OK. You can edit your answer and check how markdown works. For example, if you want to make a new line, you need to press twice enter. – Mises Mar 08 '23 at 05:46