the voice call keeps showing that it is connecting

### Steps to reproduce

Two Android phones use the voice call function. When answering the call, it always shows that it is connecting, and it cannot be connected after waiting for a long time.

### Outcome

#### What did you expect?

#### What happened instead?

### Your phone model

Xiaomi Mi 10 , vivo X30 pro

### Operating system version

Android 10

### Application version and app store

1.5.30 GPlay， GITHub

### Homeserver

The server is deployed on its own private cloud through docker

### Will you send logs?

Yes

### Are you willing to provide a PR?

Yes