Makes keeping track of your contacts simple and fun.
Robust SIP ActiveX Phone is a powerful and robust SIP ActiveX phone client.
Billion Phone - compact convenient SIP phone software for making voice calls.
Enables voice connections to landline , cellular network and VoIP.
SIP Communicator - the Java VoIP and Instant Messaging client.
Free Address Book is a contact management software.
Myvoipapp Sip Phone is a usefull tolls easy to use.
It is a digital-analog alternative to the address book or phone directory.
CardBase is a small, easy-to-use, address book and phone dialer.
A 32 Bit Address book and phone dialer for Windows 95 and NT. Its quite simple,and very easy to inst....
Net2Phone SIP Dialer lets you make phone calls using your computer.
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.
A free SIP Softphone which offers PC-to-Phone service.
New generation phone system working in IP-networks using SIP protocol.
It enables you to make voice and video phone calls using SIP-based standards.
PortSIP Solutions, Inc.
PortGo Professional is a SIP-based phone for Windows desktop.