2
Citrix Systems, Inc.
53
Freeware
It is client software that enables secure connectivity through Access Gateway.
1
PCBest Networks
18
Freeware
Robust SIP ActiveX Phone is a powerful and robust SIP ActiveX phone client.
3
Citrix Systems, Inc
1
Freeware
Citrix XenApp Provider is the new name for the WMI Provider.
1
ProfInfoTech
15
Freeware
Billion Phone - compact convenient SIP phone software for making voice calls.
2
Heiko Sommerfeldt
906
Freeware
Enables voice connections to landline , cellular network and VoIP.
2
MyVoipApp,Inc.
81
Freeware
Myvoipapp Sip Phone is a usefull tolls easy to use.
12
Net2Phone Inc.
770
Freeware
Net2Phone SIP Dialer lets you make phone calls using your computer.
15
Linphone
2,574
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
103
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.
1,032
Skype Technologies S.A.
715,514
Freeware
Get the Skype Click to Call plugin and call phone numbers on websites.
