1
ProfInfoTech
15
Freeware
Billion Phone - compact convenient SIP phone software for making voice calls.
2
Heiko Sommerfeldt
904
Freeware
Enables voice connections to landline , cellular network and VoIP.
1
SIP Communicator
116
Open source
SIP Communicator - the Java VoIP and Instant Messaging client.
Abto, LLC
Shareware
VoIP SIP SDK provides a powerful and highly customizable solution.
12
Net2Phone Inc.
770
Freeware
Net2Phone SIP Dialer lets you make phone calls using your computer.
2
MyVoipApp,Inc.
81
Freeware
Myvoipapp Sip Phone is a usefull tolls easy to use.
15
Linphone
2,567
Open source
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.
3telCafe
78
Freeware
A free SIP Softphone which offers PC-to-Phone service.
53
ProfInfoTech
4
Shareware
New generation phone system working in IP-networks using SIP protocol.
2
Avaya
102
Demo
It enables you to make voice and video phone calls using SIP-based standards.
8
PortSIP Solutions, Inc.
221
Shareware
PortGo Professional is a SIP-based phone for Windows desktop.
6
FrankCall-V5.0
1
Freeware
Frankcall provide PC to Phone, Mobile VOIP, Mobile SIP, Mobile Dialer services.
2
Nimbuzz - Call
6
Freeware
Nimbuzz Phone is company's utility SIP caller for windows platform.
Geert van der Cruijsen
24
Freeware
An application that gives you multiple skins to use on your Windows Phone 7.
