1)   AGEphone 1.41
AGEphone is a software for making phone calls from your PC. It offers a lot of features that come in handy, like importing your addresses from Outlook, an answering machine, call melodies, simultaneous use of multiple services and many more.

 2)   3CX VOIP Phone for Windows 6.0
Free VOIP / SIP phone (softphone). Use your PC as a phone. Works with any SIP / VOIP provider and phone service. Easy to use interface to transfer, forward calls or review history of calls. Free download from http://www.3cx.com

 3)   VoIP SIP SDK 3.0.11
ABTO SIP SDK provides a solution to quickly build VoIP softphone that can dial and receive calls on your computer or add VoIP features into your software or web website.

 4)   PBXPress Live CD Demo 1.1
PBXpress is a voice over IP (VoIP) replacement of traditional PBX in the era of the Internet. All of your phones are connected and provisioned via an IP network, your phone calls are always recorded and connected at a fraction of the usual cost.

 5)   ZOIPER Free SIP and IAX softphone 2.14
ZOIPER 2.0 Free Edition is a user-friendly IAX and SIP softphone compatible with the Asterisk platform or any other IAX or SIP capable system. ZOIPER Free . Find out the many advantages of this FREE product from Attractel!

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

 7)   Voip Communicator 4.2
Voip 's is the market's leading free SIP based softphone available for download. Based on the advanced architecture of eyeBeam 1.5 (Phoner's carrier grade telephony client), the new Phoner is designed to showcase some of the feature rich capabilities

 8)   IAXCOMM - VoIP SoftPhone 1.0
Das Protokoll welches von der OpenSource-Telefonanlage Asterisk benutzt wird. Es dient dabei sowohl zur Verbindung zwischen einzelnen Asterisk-Servern als auch zur Kommunikation zu Endgeräten, mit denen somit Voice-over-IP-Gespräche möglich sind.

 9)   Voip Ekiga Communicator 2.0.11
Ekiga's is the market's leading free SIP based softphone available for download. Based on the advanced architecture of eyeBeam 1.5 (Phoner's carrier grade telephony client), the new Phoner is designed to showcase some of the feature rich capabilities

 10)   Pirelli DP-L10 by VoIP Provider SiPHome Business Mobil
Functional empire dual-mode phone for a small price The Pirelli DP-L10 combines cellular and Voice over IP and offers ease of handling. When a WLAN hotspot available, notify the Pirelli DP-L10 the availability of cost-effective and allows talks on I

 11)   3CX Phone System for Windows Free 6.0
3CX VOIP Phone System FREE edition is a SIP-based IP PBX developed for Windows. Easy to install and configure, it eliminates phone wiring and allows hot desking. Lowers call costs via VOIP providers & eliminates vendor lockin. Download FREE edition!

 12)   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

 13)   Minisip 0.7
Minisip's is the market's leading free SIP based softphone available for download.

 14)   Ekiga 2.0.11
Ekiga's is the market's leading free SIP based softphone available for download.

 15)   damaka 2.0
damaka enables you to make free phone & video calls anywhere in the world. damaka uses innovative standard's based (SIP) peer-to-peer (P2P) technology to connect you with other users. It also offers free conferencing, voicemail & file transfer.

 16)   OfficeSIP Server 1.0
Enable your employees call each other for absolutely free no matter where they are in the world. Use regular telephones, including wireless handsets or headsets, and don’t pay a penny for long-distance calls!

 17)   CT Developer Studio 2.0
Integrate computer with telephony quickly and easily. Develop and run IVR applications on your Windows PC. IVR software development should not be difficult! CT Developer Studio helps you develop and host automated call handling systems.

 18)   kphone 4.2
Kphone's is the market's leading free SIP based softphone available for download.

 19)   Callback-Buttton by SiPHome 2.0
It with only one click to call. Immediately there are the Rueckrufbutton for your InterNet side!

 20)   MAX Phone 1.2
MAX Phone is the latest VoIP application from MAIN Telecom, allowing users to enjoy rich real-time communications.