iOS 15 Calls Blocked by Device Firewall
Incident Report for Inc.
We have identified a setting that is enabled by default on updated iOS devices that is preventing calls from connecting. To correct this, please disable the 'WebRTC PlatformUDP Sockets' setting.

On iPhone or iPad:
1. Open up the device’s settings
2. Navigate to Safari > Advanced > Experimental Features
3. Disable WebRTC Platform UDP Sockets.
4. Close Safari and open it again.
5. Log back into
Posted Dec 02, 2021 - 09:19 EST
This incident affects: webpages.