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.
VoIP Bookers
Freeware
VoIP Bookers offers you quality voIP and sip calls.
31
VoIP Club
197
Freeware
It is a VoIP utility that allows you to make national and international 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).
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.
StarTrinity.com
11
Freeware
SIP VoIP Softswitch with billing for VoIP wholesale, GSM termination, IVR, PBX.
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
2,567
Open source
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.
BreakPoint Software
112
Shareware
SIP Workbench is a graphical protocol analyzer and viewer.
