Abto, LLC
Shareware
VoIP SIP SDK provides a powerful and highly customizable solution.
6
Touchstone Technologies, Inc.
47
Freeware
WinSIP now includes the TestML an XML scripting engine.
15
Linphone
2,606
Open source
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.
19
NCH Swift Sound
4,101
Shareware
It is a program that allows you to make phone calls using your computer.
2
Anton Raharja
11
Open source
This software enables voice, video and IM sessions based on XMPP, SIP and IAX2.
1
RSDevs.com
33
Shareware
"VidPhone" is a H.323/SIP Video SoftPhone for Windows and Linux OS.
2
Avaya
103
Demo
It enables you to make voice and video phone calls using SIP-based standards.
83
Peter Quiring
25
Open source
jphonelite is an open source Java SIP VoIP audio and video SoftPhone.
Vitali Fomine
42
Open source
It is video conference client for SIP server compatible with WebSocket.
63
KaplanSoft
60
Shareware
TekSIP is a SIP Registrar and SIP Proxy for Windows.
1
PCBest Networks
18
Freeware
Robust SIP ActiveX Phone is a powerful and robust SIP ActiveX phone client.
E-Soft Billing (Pvt.) Ltd.
2
Demo
SIP Mobile Dialer is designed for small and mid size VoIP/SIP providers.
12
Net2Phone Inc.
770
Freeware
Net2Phone SIP Dialer lets you make phone calls using your computer.
2
Billion Online Technology Ltd.
24
Freeware
BOL SIPPhone is the leading SIP dialer, available for private label and logo.
