1
Interactive Intelligence
5
Freeware
SIP Proxy - survivable remote site telephony (SRST) during disaster recovery.
77
OfficeSIP Communications
160
Freeware
Provides you everything you need to facilitate communication around the office.
41
StarTrinity
180
Freeware
You can test VoIP network, SIP software or hardware.
1
ProfInfoTech
15
Freeware
Billion Phone - compact convenient SIP phone software for making voice calls.
Avaya
16
Freeware
ProVision is a powerful PC-based provisioning tool.
13
iTELL VOIP
1
Freeware
iTellVoip is a professional VoIP service provider software.
16
VaxSoft
4
Shareware
Secure AI-powered SIP SDK for VoIP servers, IP-PBX, IVR, and call centers.
63
KaplanSoft
60
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.
97
ABB Systems
5
Shareware
Helps shareware authors to easily submit their PAD files to 200+ shareware sites.
IBM
Shareware
Citrix servers, Microsoft Terminal Servers and Web portals.
1
VPNShazam
29
Freeware
VPNShazam Static Multi Servers is for connecting to all static IP servers.
2
Anton Raharja
11
Open source
This software enables voice, video and IM sessions based on XMPP, SIP and IAX2.
12
Net2Phone Inc.
770
Freeware
Net2Phone SIP Dialer lets you make phone calls using your computer.
2
Billion Online Technology Ltd.
24
Freeware
BOL SIPPhone is the leading SIP dialer, available for private label and logo.
