437
Microsoft
87,071
Commercial
It allows you to create professional diagrams to simplify complex information.
1
SIP Communicator
116
Open source
SIP Communicator - the Java VoIP and Instant Messaging client.
Abto
Shareware
ABTO VoIP SIP SDK installation includes a number of finished softphone samples.
1
SoftApproach Corporation
37
Shareware
Amazing Visio is a toolset which improves drawings in Microsoft Office Visio.
VoIP Bookers
Freeware
VoIP Bookers offers you quality voIP and sip calls.
E-Soft Billing (Pvt.) Ltd.
2
Demo
SIP Mobile Dialer is designed for small and mid size VoIP/SIP providers.
FaxVoip Software
1
Shareware
Fax Voip T.38 Console - T.38 and Audio Fax over VoIP (SIP, H.323).
StarTrinity.com
11
Freeware
SIP VoIP Softswitch with billing for VoIP wholesale, GSM termination, IVR, PBX.
4
Free Software Foundation, Inc.
3
Freeware
The FMC Stencils are templates and extensions for Visio or OpenOffice Drawing.
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
2,572
Open source
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.
ZeeVoice
17
Freeware
A sip softphone for making and receiving VoIP calls.
Yasin KAPLAN
7
Freeware
TekPhone is a SIP VoIP Softphone that provides UA agent functions.
11
PortSIP Solutions, Inc.
82
Freeware
PortGo is the newest SIP softphone from PortSIP, it's built base on PortSIP VoIP.