Callers can connect to a conference call using either standard or VoIP lines on external telephone numbers or through an office phone system. The number of people who can join a conference call is limited only by your bandwidth.
Easy to use answering machine software and fax software for Windows. FaxTalk Messenger Pro provides powerful answering machine and send and receive fax capabilities to manage your voice and fax communications quickly, efficiently and reliably.
Throttle instantly upgrades your computer and modem to download files faster, browse the web faster and play games without lag. Throttle is one of the best internet acceleration software products and works with Cable, DSL, U-Verse, Fios internet.
AsterSwitchboard is an operator panel for Asterisk PBX running on MS Windows clients
SIP Conference Server for Windows
SIP Route / Redirect Server for Windows with ENUM Support
TekSIP is a SIP Registrar / Proxy for Windows.