problems with voip telephony, using site to site vpn connection

implementing vpn site to site connection, causes problems with ip telephony, when starting the connection or disabling the connection causes my voip phones to start disconnecting from the pbx. once the...
NAT over IPSeC Site-to-Site VPN

Greetings fellow members, I have 2 networks with 1 sophos firewall each, network A (Public IP/80.80.80.128, Local Network/192.168.20.1/24) and network B (Local Network 192.168.10.1/24). Sophos B XGS107...
IPSEC site to site VPN, initiator behind router

We are wanting to connect our remote office, which is in a managed/shared office space building, to our head office. We have no control over the shared office netowrk. We have a XGS in the managed...
Site to Site VPN Authentication on reboots - Change PSK works

I have multiple Sophos site to site VPN's back to a central router. Whenever any of the sites losing connection they all re-connect except for 1. The Sophos VPN logs show "Couldn't authenticate the local...
Assistance Required with Site-to-Site VPN Configuration between sophos and Azure

Dear Sophos Support, I hope this message finds you well. We are experiencing an issue with our Site-to-Site VPN setup. While the VPN tunnel appears to be up and stable, we are unable to access the...