1
SIP Communicator
116
Open source
SIP Communicator - the Java VoIP and Instant Messaging client.
BreakPoint Software
112
Shareware
SIP Workbench is a graphical protocol analyzer and viewer.
3CX Ltd
30
Freeware
It can simplify Firewall configuration at both the remote and the PBX location.
15
Linphone
2,574
Open source
Configure SIP accounts, perform VoIP phone calls or initiate audio conferences.
1
Interactive Intelligence
5
Freeware
SIP Proxy - survivable remote site telephony (SRST) during disaster recovery.
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.
5
Innovative Systems of Communication LLC
32
Freeware
Flaphone™ is a SIP (Session Initiation Protocol) compatible web softphone...
Yasin KAPLAN
5
Shareware
TekFax is a SIP (Session Initiation Protocol) fax receiver server.
Microsoft Corporation
8
Freeware
It can be used for creating server-side Session Initiation Protocol (SIP) apps.
2
Sandes Daniel
138
Freeware
Get now Tango Skin Pack and transform Windows 7 to Windows Phone Tango.
63
KaplanSoft
58
Shareware
TekSIP is a SIP Registrar and SIP Proxy for Windows.
1
PCBest Networks
18
Freeware
Robust SIP ActiveX Phone is a powerful and robust SIP ActiveX phone client.
E-Soft Billing (Pvt.) Ltd.
2
Demo
SIP Mobile Dialer is designed for small and mid size VoIP/SIP providers.
