FAQ - Video Call (Legacy) - Agora Documentation

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Video Call (Legacy)

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Android

All Platforms

Platform

Android

iOS

macOS

Web

Windows

Framework

Electron

Unity

Flutter

React Native

Cocos Creator

Cocos2d-x

FAQ

Android

All Platforms

Platform

Android

iOS

macOS

Web

Windows

Framework

Electron

Unity

Flutter

React Native

Cocos Creator

Cocos2d-x

Integration issues

How can I choose the video resolution, frame rate and bitrate? How can I pass the basic HTTP authentication or token authentication? What is the difference between the in-call volume and the media volume? Does Agora have reconnection mechanisms? How do I use the Agora Web SDK to interoperate with the Agora Native SDK? How can I solve channel-related issues? How can I set the log file? How can I use string user names? How can I set a mirror mode? Why can't I play the audio file using startAudioMixing or playEffect on Android 9? How can I listen for an audience joining or leaving an interactive live streaming channel? How to solve token-related errors? How can I implement the call rejection function when the line is busy? How can a host change the role of a remote user? How do I get the user's call duration? How can I listen for the status of a user's microphone and camera? How can I determine whether a call is an audio call or a video call? How do I remove a specified user from a channel? How do I use co-host token authentication? What are the differences between the COMMUNICATION and LIVE_BROADCASTING profiles? How can I rate a call? How can I enable in-ear monitoring? How can I enable camera exposure and focus? How to protect interactive live streaming from stream bombing? Why can't I adjust the volume of the background music through the system volume? Why doesn't the music file resume playback after a phone call on an Android device? Why does the audio routing change after I switch to another app on an Android device? Why can't I use startAudioMixing to play a music file? How do I avoid sending audio streams to remote users during a phone call? How can I reduce the app size after integrating the RTC Native SDK? How to upgrade to token-based authentication? How can I switch from custom video capture to SDK capture? What is the relationship between the old and new callbacks of Media Push? How can I enable image enhancement? Why can't I hear audio in stereo when playing a stereo file?

Quality issues

How can I solve echo problems? Why can I hear the noise in a call? How can I solve the problem of low volume? How can I prevent volume changes when the users switch their roles in an interactive live streaming channel? Why can't I answer calls through a Bluetooth device after connecting it to an iOS or Android device? Why is my video choppy? Why is my video blurry? How can I fix black screen issues? Why can't I turn on the camera? Why do I see a big headshot or letterboxing? Why does the SDK stop sending audio or video after the user uses a third-party app? Why is my video pixelated or jagged and green? How can I fix unsynchronized audio and video? How can I troubleshoot the issue of no sound?

General product inquiry

What platforms does Agora support? What products does Agora provide? How many users can Agora RTC SDK support at the same time? Which VR headsets are compatible with the Agora Video SDK? Which audio file formats does the Agora RTC SDK support?

Account & Billing

Agora's free-of-charge policy for the first 10,000 minutes What are Agora’s policies on billing, fee deductions, and account suspension? How can I solve account issues in Agora Console? How does Agora calculate service minutes?

Other issues

Why is no audio or video captured on Android 9 devices? Why is the audio routing abnormal after the Android device joins the channel? How can I view Agora API references offline?