BrowseGate3 NAT/Proxy server with full stealth firewall.

stealth network firewall, NAT software router, HTTP caching, SOCKS server, access control and authentication, built-in DHCP Server, dial-up control, VPN (PPTP and IPSec), network monitoring and management, banner blocking, firewall timing control

Everything you need to simultaneously connect all your computers to the Internet. Proxy server with Internet connection sharing, advanced firewall, inline antivirus, NAT, and site filtering for your home or business network.

Secure mail server with anti-virus & anti-spam, built-in firewall with NAT and real-time web content filter proxy for controlled Internet sharing. Access your e-mail anywhere using the included web mail client.

TekSIP is a freeware SIP Registrar and Stateless SIP Proxy for Windows. You're free to use it for both commercial and personal use. We only ask you to provide feedback.

Switch a laptop between network settings (network configuration switcher). For mobile users who use one laptop (notebook) on different networks. For example, switch from a static to a DHCP assigned IP address. Switch proxy, smtp, printer and more.

UserGate Proxy & Firewall is a comprehensive network management and security solution for network and user access control, equipped with VPN support, application control, anti-virus modules, categorized URL filtering, DHCP and Bandwidth Manager

NX is not simply a softphone, it makes possible and transparent to use the VoIP technology integrated with other software.