You can go with any reputed brands like Cisco, Fortinet, Palo Alto, checkpoint, Sophos. Features sets like malware protection, 360 visibility, spam/web filter, URL filter are available in almost all firewall vendors but in different licensing types. First, choose a suitable…

SIP is a protocol used for session management in VoIP or video communication, On the other hand NAT Traversal is a technique used to maintain connectivity over networks where NAT is used. You are probably looking to implement VoIP in your network if I'm not mistaken. There…