3CX Ltd
30
Freeware
It can simplify Firewall configuration at both the remote and the PBX location.
Abto
Shareware
ABTO VoIP SIP SDK installation includes a number of finished softphone samples.
1
SIP Communicator
116
Open source
SIP Communicator - the Java VoIP and Instant Messaging client.
90
Cerulean Studios
10,831
Freeware
Chat with your friends individually or in a group, and share files.
2
Reactive Software
20
Shareware
Automatically decrypts and decodes passwords for Trillian accounts.
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).
Richard GAYRAUD, Olivier JACQUES
253
Open source
Sipp is a performance testing tool for the SIP protocol.
53
ProfInfoTech
4
Shareware
New generation phone system working in IP-networks using SIP protocol.
3
iaxtalk.com
33
Freeware
sipLite softphone is a free softphone which works with SIP protocol.
VoIP Bookers
Freeware
VoIP Bookers offers you quality voIP and sip calls.
StarTrinity.com
11
Freeware
SIP VoIP Softswitch with billing for VoIP wholesale, GSM termination, IVR, PBX.
1
Cerulean Studios
59
Shareware
Trillian Pro is a multi-protocol instant messaging service.
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.
