Skype
Make phone calls from your computer

Skype is free Internet telephony that just works.
Skype is for calling other people on their computers or phones. Download Skype and start calling for free all over the world.

Our software’s quick and easy to get started with. Download, register, install, plug in your headset, speakers or USB phone and start calling your friends. The calls have excellent sound quality and are highly secure with end-to-end encryption. You don’t even need to configure your firewall or router or any other networking gear. It just, you know… works.

Features

Make free Skype-to-Skype calls to anyone else, anywhere in the world.
See who you are talking to with free video calls.
Send SMS messages to friends on the move.
Group chat with up to 100 people or conference call with up to four.
Search the web with the Google Toolbar (optional install).

Last Updated 02 May 2008
Win 2000/XP
Mac
Linux
Pocket PC

CQPhone

CQPhone is a simple chat program that works like a real telephone.
This program is free. There are no advertising banners.
Voice chat + Video chat + Typing chat
Share pictures and web pages
Works with dialup, DSL and cable modems
Every user receives a private phone number
Meet new friends on the public chat list
No cost. No registration. No adware. No spyware
Win 98/Me/2000/XP/2003

Firefly Softphone
Internet Phone

Firefly is a fully featured softphone with instant messaging and voicemail for home, businesses, schools and other organisations. It lets anyone with a microphone and speakers or a USB handset communicate around the world.

You can make phone calls to any other Firefly users anywhere in the world for free. You also get instant messaging to other Firefly users, as well as your own Voicemail box so people can leave you a message when you are unavailable or not on the Internet - for free. Finally, you can call traditional phones both nationally and internationally with extremely competetive calling rates.

Last Updated 06 November 2007
Win 98/Me/2000/XP

TeamTalk

This is the latest version of TeamTalk which is a voice conferencing application (or internet phone). TeamTalk allows you to talk to friends and colleagues using the internet as audio carrier.

With TeamTalk any number of people can participate in a conversation and is only limited by the bandwidth you have available.
Each user can choose his or her own audio quality which also determines the throughput required to each user.
TeamTalk allows a throughput between 560 - 5850 bytes/sec. per user (so make sure those unlucky ones with a 56K modem are able to receive at your selected audio quality).
Win 98/Me/2000/XP
Linux
Pocket PC

Google Talk

They say talk is cheap. Google thinks it should be free. Google Talk enables you to call or send instant messages to your friends for free–anytime, anywhere in the world. Google Talk offers you:
Choice: Get in touch over email, IM or a call
Quality: Talk through your computer but hear your friends as if they were in the same room
Convenience: Your Gmail contacts are pre-loaded into Google Talk so inviting or talking to your friends is just a click away
Google Talk is in beta and requires a Gmail username and password.
Win 98/Me/NT/2000/XP

Wengo beta 2 version

Wengophone is a free voip software. It enables you to chat with different IM software(msn, yahoo messenger etc), to call landline or mobile at a very low rate. Now, there is even a great offer for calling 26 destinations for free and unlimited.
Free PC to PC calls
Video Call
Directory
SMS text messages
Win 2000/XP
Mac
Linux
Pocket PC and Smart Phone

Eyeball Chat LE

Eyeball Chat is a free, consumer-oriented video chat and instant messaging application created by Eyeball Networks. Eyeball Chat has been downloaded by millions of people worldwide and is built using Eyeball Video Suite technology.

Eyeball Chat enables any user to communicate live and face-to-face with another user over the Internet for free. All that is needed is an Internet connection and a standard webcam to connect to another friend or family member worldwide.

While the program is downloading, get your free Eyeball ID by here
Win 95/98/Me/NT4/2000/XP

Express Talk

Express Talk is software that works like a telephone to let you make calls from your PC. With Express Talk you can call anyone on the internet who has installed Express Talk (or any other SIP voip softphone). Calls are free.
You can also call ordinary telephone numbers anywhere in the world if you sign up to a gateway service. It uses the SIP protocol and is compatible with most major VoIP SIP service providers. See below for some recommended telephone gateway companies.
Lets you make internet phone calls free direct PC to PC, or PC to phone via a VoIP
Win 95/98/Me/2000/XP

Microsoft Portrait

Microsoft Portrait is a research prototype for mobile video communication. It supports .NET Messenger Service, Session Initiation Protocol and Internet Locator Service on PCs, Pocket PCs, Handheld PCs and Smartphone.

It runs on local area networks, dialup networks and even wireless networks with bandwidths as low as 9.6 kilobits/second.

Microsoft Portrait delivers portrait-like video if users are in low bandwidths and displays full-color video if users are in broadband.
In low bandwidths, portrait video possesses clearer shape, smoother motion, shorter latency and much cheaper computational cost than do conventional video technologies.

Microsoft Portrait pursues providing presence notification, chat/voice/video functions anytime, anywhere, on any device.
Win 98/Me/NT/2000/XP
Pocket PC

3CX VOIP Phone for Windows

CX VOIP Phone is a free VOIP / SIP phone that allows you to use your PC as a phone. 3CX VOIP Phone for Windows works with any SIP / VOIP provider/ phone service. Use 3CX VOIP Phone for Windows instead of the soft phone provided by your VOIP provider which locks you into their VOIP phone service.

3CX VOIP Phone for Windows features an easy to use interface to transfer, forward calls or set-up conference calls. Includes call log, call statistics & phone-book. Available in English, German, Spanish, French & Portuguese.
Win 98/ME/NT/2000/XP

BuddyTalk

BuddyTalk is the ultimate Internet voice communication tool for staying in touch with all of your friends/family, classmates or coworkers while you're online! Download the software today and start taking advantage of the many ways of communicating with your buddies!
Win 98/Me/NT/2000/XP

Gecko Phone 1.21

Gecko phone is a virtual telephone for your windows PC. It enables you to hold voice conversations over the internet with other Gecko Phone users.
You just need to dial a persons Gecko number or IP address and if that person has Gecko Phone running in the system tray: ring...ring... hello...
Win 95/98/Me/NT4/2000/XP

One4000 SoftGlobalPhone

You sign up, choose your plan and download One4000 SoftGlobalPhone, a small software program. One4000 SoftGlobalPhone will display a 3D designer phone on your desktop
To make your calls, you click on the dial pad, just the way you would have done on a real phone. Or, you use its address book, just the way you do when you dial from your mobile/cellular phone. At a click of a button you can also choose if you want to make the call from your PC or from your regular phone.

If you choose to make calls from your PC to your friends PC you will make free calls all over the world. If you call them at their regular phones, it’s not free but it doesn’t cost you much.
Download link removed as the software is no longer free
Win 95/98/Me/NT4/2000/XP

DingoTel PC

Talk unlimited from your PC to any other PC in the world free.
Download our PC phone software and join the DingoTel network today. It's free, fun, and easy! You too can enjoy the benefits of free calls to other users and incredible rates to regular numbers worldwide. With a range of options it’s the ultimate freedom to talk.
Win 98/Me/NT/2000/XP/2003

RealTunnel

Do you have a problem with voice/video and NAT firewall traversal?
RealTunnel by Paradial can help.
- SIP (supports the most common SIP clients) and MSN enabled
- Supports all NAT and firewall devices
- Secure (the system can be configured as a VPN service by SSL)
- No modification to existing network
- Ideal for video desktop conference (we provide complete solutions)
- Full SIP server functionality including presence
- Integrated multipoint conference functionality by Q3 2004
Win 98/Me/NT/2000/XP/2003