1
SIP Communicator
116
Open source
SIP Communicator - the Java VoIP and Instant Messaging client.
3
Frontline Test Equipment, Inc.
105
Freeware
It is an easy to use and powerful protocol analysis platform.
76
BreakPoint Software
112
Shareware
SIP Workbench is a graphical protocol analyzer and viewer.
3
Duxoft Lite
130
Freeware
It is a SIP-based softphone, can be used to make or receive calls.
3CX Ltd
30
Freeware
It can simplify Firewall configuration at both the remote and the PBX location.
3
iaxtalk.com
33
Freeware
sipLite softphone is a free softphone which works with SIP protocol.
Richard GAYRAUD, Olivier JACQUES
254
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.
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.
3
Panasonic Communications Co., Ltd.
1
Freeware
GIGARANGE USB utility for PC interface software. Works with any SIP.
