Ozeki Ltd.
14
Demo
Provides professional technology for VoIP voice calling.
VaxSoft
195
Demo
VaxVoIP SIP (software development toolkit) is a complete development toolkit.
Abto, LLC
Shareware
VoIP SIP SDK provides a powerful and highly customizable solution.
1
Interactive Intelligence
5
Freeware
SIP Proxy - survivable remote site telephony (SRST) during disaster recovery.
BreakPoint Software
112
Shareware
SIP Workbench is a graphical protocol analyzer and viewer.
63
KaplanSoft
58
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.
3
ZoiperWeb
456
Shareware
Zoiper WEB is a webphone designed to seamlessly integrate into your website.
2
Anton Raharja
11
Open source
This software enables voice, video and IM sessions based on XMPP, SIP and IAX2.
12
Net2Phone Inc.
769
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.
2
Finarea S.A. Switzerland
239
Freeware
Enter your settings in SIP-device and call at the lowest rates available.
3
Octro, Inc.
62
Shareware
OctroTalk is an integrated instant messaging application VoIP call, SIP call etc.
Vietnam Datacommunication Company
21
Freeware
VNN-SIP-Fone uses public Internet to establish calls between telephone and PC.
