1)   RinGo 0.6
Make voice calls from any PC in the world. Free voice connectivity with Internet users. RinGo allows you to make calls from any place in the world from your PC without the use of PSTN (traditional telephony provider) for local and international calls

 2)   VoIP H.323 SDK for .NET and ActiveX 1.0
VoIP H.323 SDK A powerful and highly versatile VoIP SDK to accelerate development of H.323 applications and websites. Lost no time and start a massive jump in development and a couple of new customers. Enjoy!

 3)   APNAVOIP(voipswitch) 2.0.0.989
Apnavoip Voipswitch the best billing and routing solution for all types of VOIP services

 4)   Accurate Network Monitor 1.31
HHD Accurate Network Monitor - ip packet sniffing, monitoring and protocol analyzer software tool that can sniff internet protocols performing tcp / ip, udp / ip communication traffic analysis. LAN connection sniffer and internet data capture utility

 5)   TERAVoice Server 2004
TERAVoice is a high-performance telephony platform for Windows that can implement any type of telephony application like voicemail, automated attendants, voice menus, waiting queues for call centers, H.323 to PSTN gateway and custom IVR applications.

 6)   VoiSpeed Server 2.55
VoiSpeed is a software solution that lets you build complete telephone networks over LANs and realize Internet telephony, CRM and Call Center applications, integrating itself with databases and managerial softwares.

 7)   GNU Gatekeeper 2.2.6
A free H.323 gatekeeper to build VoIP networks, route calls and do authentication and accounting.

 8)   Voice over IP H323 SDK 2.1
Our brand-new VoIP H.323 SDK provides a powerful and highly customizable solution to quickly add H.323 based dial and receive phone calls features in your software applications.

 9)   SIP H.323 IAX Audio Conference Server (MCU) 1.0
H.323 SIP IAX Audio Conference Server (MCU), allows mixed conferences between H.323, SIP and IAX users. Supports various audio codecs, web interface.

 10)   H323 VoIP SDK 1.0
The Abto LLC VoIP H.323 SDK contains a high performance VoIP conferencing client capable of delivering crystal clear sound even for both low and high-bandwidth users and H.323 compatible devices (hardware and software).