GCN
With E-mail, Chat Rooms, Private Messages, Games, a Web Browser, Popup-blocker, Profiles, Message Boards, Desktop Sharing, Integration with AIM, MSN, Yahoo, and ICQ, Voice Chat Rooms, Video Conferencing, Language Translation, File Transferring, Whiteboards, a Media Player, Free Web Hosting,... The best part is, GCN is and always will be absolutely FREE!
http://www.gcn.cx/gcn_setup2.9.1.exe - 3Mb - Download - Screenshot

Audio Mid Recorder
Audio Mid Recorder is a powerful real-time sound recorder from any resource such as Mid, MP3, WAV, WMA, RM, OGG,VQF, CD, DVD, MPEG, AVI, MOV, GAME, FLASH, Streaming Audio on Internet... , even from all peripheral equipment such as Microphone, Cassette Tape, TV, Radio, Electronic Organ, Video... And you can using it as sound snooper for Conference recordings, Phone calls monitoring and recording, Radio broadcasts logging, Spying, employee monitoring, etc. ... * Grab audio from all multimedia files can be played with any audio player and video player such as Windows Media Player, Winamp,...
http://www.audio-recorders.net/download/audio-mid-recorder.exe - 6Mb - Download - Screenshot

Proxy-Pro Family GateKeeper
Proxy-Pro Family GateKeeper is a proxy server firewall that allows you to share, secure and accelerate your Internet connection. Developed especially for home or small office use Proxy-Pro Family GateKeeper allows you to connect your entire network to the same Internet Connection thus giving you... Features: Share one Internet connection, Proxy Server, Firewall, Automatic Client Configuration, Easy to configure and manage, Auditing/Logging, Dial on demand/Auto disconnect, Access Restrictions, Parental Control, Remote Administration, Statistics, Accelerate Your Internet Connection, Safe...
http://proxy-pro.com/files/ProxyProFamily.exe - 6b - Download - Screenshot

Blaze Audio Voice Cloak
Wouldn't it be fun if you could change your on-line voice into something completely different- change male to female and vice-versa, or even have a voice straight out of the latest science fiction movie? Now you can disguise, morph, and improve your online voice. ... Voice Cloak transforms your voice for voice chat, video conferencing, recording programs, and voice over IP telephone calls such as PC2phone etc. ... Then you can use that preset any time you want to "be" that character. ... You can click on a button to add a funny sound effect in the middle of any conversation.
http://mirror.blazeaudio.com/downloads/VoiceCloakTrial.exe - 2Mb - Download - Screenshot

AV Voice Changer Software
Apart from other voice changers, Voice Changer Software changes your voice over internet in real time and acquires unlimited number of new voices. You can modify voice by changing voice pitch and voice timbre, applying effects, adjusting advanced tuner, and setting equalizer. ... Voice Changer Software is quite simple to use with various presets available for you to pick and apply: audio effects, "nickvoices", and equalizer settings. ... It tells you how successful you are done and what need further adjustment to imitate or simulate that target voice.
http://www.softcns.com/downloads/avnex/vcsaff.exe - 6Mb - Download - Screenshot

AV Voice Changer Software Gold Edition
Apart from other voice changers, Voice Changer Software Gold changes your voice over internet in real time and acquires unlimited number of new voices. You can modify voice by changing voice pitch and voice timbre, applying effects, adjusting advanced tuner, and setting equalizer. ... ), Audio Video Conferencing and PC- to-Telephone programs (Net2Phone, Dialpad, Go2Call, DeltaThree, MaxPhone... ... This Gold Edition of Voice Changer Software introduces faster voice changing algorithms and includes a built-in MP3 player that play audio file in various formats, including mp3, wma, wav, ogg...
http://www.softcns.com/downloads/avnex/vcsgoldi.exe - 8Mb - Download - Screenshot

AV Voice Changer
Apart from other voice changers, Voice Changer Software changes your voice over internet in real time and acquires unlimited number of new voices. You can modify voice by changing voice pitch and voice timbre, applying effects, adjusting advanced tuner, and setting equalizer. ... ), Audio Video Conferencing and PC-to-Telephone programs (Net2Phone, Dialpad, Go2Call, DeltaThree, MaxPhone... ... Also, you have more control over the software such as exclude certain audio streams or application out of modifying process and manage you list of "nickvoice" effects, equalizer settings.
http://www.mp3towav.org/download/AV-Voice-Changer.exe - 6Mb - Download - Screenshot