Blocking VoIP Packets Within Encrypted Channels
Audio and video streams transmit without delivery confirmations to prevent speech delays. If intermediary ISP equipment drops UDP protocol ports or the tunnel server is overloaded, the app cannot negotiate a direct connection with the peer and gets stuck in an endless 'Connecting' state.
How to Fix Stable Voice Calls
- Switch the client transfer protocol from UDP to TCP in settings
- Set up split tunneling to route messengers directly outside the tunnel
- Use modern protocols with traffic obfuscation features like VLESS Reality
- Change your server location to the nearest country with the lowest ping response