Condition
2021-03-30: NEW. Distribution Release: Proxmox 6.4 'Mail Gateway': Rate this project: Proxmox is a commercial company which offers specialized products based on Debian. The company has launched Proxmox Mail Gateway version 6.4 which is based on Debian 10.9 'Buster'.
- Dec 20, 2017 3cx sophos-xg firewall Status Not open for further replies. Joined Oct 23, 2017 Messages 5 Reaction score 0. Dec 20, 2017 #1 Hallo Community, we are new to.
- In order for 3CX to work with VoIP providers and directly connected external extensions it must be able to establish communication to the devices and VoIP provider. Additionally, the firewall must be prepared to operate correctly with SIP. A firewall without an integrated SIP server (such AVM Fritz box or Speedport) or SIP ALG is preferable.
- 3CX: Type: Voice-over IP (VoIP). Try Sophos products for free Download now Download Sophos Home. Free business-grade security for the home. Endpoint Protection.
3cx Hinter Sophos Utm
Unstable VoIP connection when when DoS settings for UDP rate are applied.
Cause
3cx Sophos Utm
UDP flood settings cause VoIP traffic to drop.
Remedy
3cx Sophos Free
- Go to Intrusion prevention > DoS & spoof protection.
- Clear the Apply flag check boxes for UDP flood.
- Test the VoIP connection.
- If this resolves the VoIP issue lower the UDP flood protection values before applying the flag again.
There is no set value that because each environment is different. Adjust the values until you find those that works with your VoIP setup.