Firewall Settings for VoIP Domain Name Servers secure.counterpath.com secure-east.softphone.com secure-west.counterpath.com IP Addresses 40.78.10.175 52.183.45.217 52.250.216.127 69.90.51.0/24 173.244.45.15 198.204.63.15 216.93.246.0/24 Port(s) to Open 5060 Related articles Install or Update VS Connect VanillaSoft VoIP System Requirements Unable to Log In to VS Connect VanillaSoft I.P. Addresses VS Connect Error - Unable To Connect To Server