PC Best Networks
Freeware
A Free Windows SIP PBX, with rich and powerful features.
Abto
Shareware
ABTO VoIP SIP SDK installation includes a number of finished softphone samples.
12
Net2Phone Inc.
770
Freeware
Net2Phone SIP Dialer lets you make phone calls using your computer.
90
Laic Aurelian
14
Freeware
SpyXie Voice Chat it is like a free telephone service for LAN.
1
AT&T
23
Freeware
It allows you to schedule a web or voice conference.
Vitali Fomine
42
Open source
It is video conference client for SIP server compatible with WebSocket.
46
Attractel
12,044
Shareware
Zoiper Classic BIZ provides secure high-quality voice calls and conference.
2
Anton Raharja
11
Open source
This software enables voice, video and IM sessions based on XMPP, SIP and IAX2.
1
PortSIP Sutions, Inc.
74
Freeware
Softphone compatible with SIP for voice over IP PBX or international providers.
23
Yasin KAPLAN
7
Shareware
TekIVR is a SIP Interactive Voice System (IVR) runs under Windows.
2
Avaya
103
Demo
It enables you to make voice and video phone calls using SIP-based standards.
1
ProfInfoTech
15
Freeware
Billion Phone - compact convenient SIP phone software for making voice calls.
FaxVoip Software
Shareware
T.38 Fax/Voice/SIP/H.323/ISDN modem. Operates with standard fax soft.
Castel
1
Commercial
VDIP Compact solution enables voice, data (code) and video flow management.
