Abto, LLC
Shareware
VoIP SIP SDK provides a powerful and highly customizable solution.
conaito Technologies
19
Shareware
Is adds quickly SIP based dial in your software applications.
Konnetic
9
Shareware
Konnetic's Unity SIP .NET SDK povides a fully RFC3261 compliant class library.
VaxSoft
Shareware
Provides tools for developing a VoIP Call Recording Server.
24
Advanced Micro Devices, Inc.
7,855
Open source
The ATI Stream Computing team is proud to offer a wide variety of training.
79
Microsoft
Freeware
It helps you start building Exchange 2000 Server solutions.
Abto
Shareware
ABTO VoIP SIP SDK installation includes a number of finished softphone samples.
Amazon Web Services Developer Relations
13
Freeware
It makes it even easier for Windows developers to build .NET applications.
Microsoft Corporation
3
Freeware
With the Bing Map App SDK, you can now create your own map apps.
42
Ozeki Ltd.
14
Demo
Provides professional technology for VoIP voice calling.
44
StarTrinity.com
11
Freeware
SIP VoIP Softswitch with billing for VoIP wholesale, GSM termination, IVR, PBX.
Yasin KAPLAN
7
Freeware
TekPhone is a SIP VoIP Softphone that provides UA agent functions.
83
Peter Quiring
25
Open source
jphonelite is an open source Java SIP VoIP audio and video SoftPhone.
E-Soft Billing (Pvt.) Ltd.
2
Demo
SIP Mobile Dialer is designed for small and mid size VoIP/SIP providers.
VoIP Bookers
Freeware
VoIP Bookers offers you quality voIP and sip calls.
FaxVoip Software
1
Shareware
Fax Voip T.38 Console - T.38 and Audio Fax over VoIP (SIP, H.323).
conaito Technologies
4
Shareware
The conaito VoIP EVO SDK contains a high performance VoIP conferencing client.
3
Octro, Inc.
62
Shareware
OctroTalk is an integrated instant messaging application VoIP call, SIP call etc.
3
AdoreSoftphone
208
Demo
A basic SIP Softphone that allows to connect to VoIP PBX and providers.
15
Linphone
2,606
Open source
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.