Headphone and headset software for management of Jabra devices over USB connection: Jabra Direct is free PC software enabling Jabra USB devices to have Remote Call Control over most softphones. 24 MB | For Windows 7, Windows 8 / Vista / XPFree
**** LINE **** is a cross-platform text, video and audio chat application which allows you to make free international telephone calls and share multimedia files with friends. 11.6 MB | For Windows 7, Windows 8 / Vista / XPFree LINE Review - Download
Desktop softphone application for Windows with Voice Over IP protocol as an alternative to traditional landline telephone: X-Lite is a freeware voice-over-IP telephone software application which provides for free standard-definition calling over SIP. 43.7 MB | For Windows 7, Windows 8 / Vista / XPFree X Lite Review - Download
Phone Dial by PC can dial/operate a phone that is using the serial interface RS-232 connected to the PC com port. 0.49 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware
Make voice-over-IP calls and manage contacts with virtually any VoIP provider or server directly from the PC or communicate with text messages: MicroSIP is a simple and easy-to-use utility that allows you to make high quality VoIP calls via the open SIP protocol. 4.5 MB | For Windows 7, Windows 8 / Vista / XPFree
Flexible voice chat software which can connect to many users and supports groups: RaidCall is a completely free chatting program which was designed for use by multiplayer gaming. 4.89 MB | For Windows 7, Windows 8 / Vista / XPFree RaidCall Review - Download
**** Viber (for PC) **** is an Internet-based video, voice and SMS texting program which allows you to communicate with friends who have the corresponding application installed on their cell phone, whether it be an iPhone, Android, Windows Phone or BlackBerry. 1.18MB | For Windows 7, Windows 8 / Vista / XPFree Viber for Windows Review - Download
If you're a fan of multiplayer gaming either over local networks or the Internet, then you might find TeamSpeak useful. 32.29 MB | For Windows 7, Windows 8 / Vista / XPFree TeamSpeak Client Review - Download
In today's world, where staying connected with your loved ones has become more important than ever, traditional mobile phone networks have a new foe to contend with - Internet telephony. 65.5 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Linphone Review - Download
Software that runs a fully-featured voice-over-IP calling and telephone system with contact management, logging, call recording and more with this softphone app: PhonerLite is a clearly arranged application for Windows. 4.6 MB | For Windows 7, Windows 8 / Vista / XPFree
Mumble is a voice communications system that allows you to interact with other gamers while playing your favorite online games. 14.9 MB | For Windows 7, Windows 8 / Vista / XPFree Mumble Review - Download
BitPIM is a free utility for working with older CDMA cell phones from a variety of producers such as Samsung, LG, Sony Ericsson, Nokia and others. 11.2 MB | For Windows 7, Windows 8 / Vista / XPFree BitPim Review - Download
Tango is a free mobile-to-PC or mobile-to-mobile video calling software which allows for local and international calling with voice-over-IP (VoIP). 11.23 MB | For Windows 7, Windows 8 / Vista / XPFree Tango Review - Download
With the huge popularity of online multiplayer games, the growth of clans and games with friends has happened. 9.9 MB | For Windows 7, Windows 8 / Vista / XPFree Dolby Axon Review - Download
Nymgo is an alternative program to other VoIP clients which can make PC-to-Phone calls to virtually any telephone number on the planet, probably save for North Korea. 15.6 MB | For Windows 7, Windows 8 / Vista / XPFree Nymgo Review - Download
In this digital age, most of us have opted for online communication as a means of staying connected with our loved ones, thanks to its low cost. 6.3 MB | For Windows 7, Windows 8 / Vista / XPFree VoipBuster Review - Download
Since the inception of Skype and the wide-spread use of voice-over-IP technology, there have been many new innovations and improvements to the technology which has caused services like SmartVoIP to be born. 5.8 MB | For Windows 7, Windows 8 / Vista / XPFree SmartVoip Review - Download
Remote SMS is a utility which can send SMS text messages via online services. 781 KB | For Windows 7, Windows 8 / Vista / XPFree Remote SMS Review - Download
mysms is a freeware application which allows users to send text messaging using your personal computer, tablet or cell phone. 9.8 MB | For Windows 7, Windows 8 / Vista / XPFree mysms Review - Download
Google Voice and Video Chat is a cool browser-plugin which allows you to make telephone and video conference calls from within your Gmail account. 800 KB | For Windows 7, Windows 8 / Vista / XPFree Google Voice and Video Chat Review - Download
Most people are aware of Skype, though fewer are familiar with the fact that it now uses a centralized server which may be monitored by goverments, due to Microsoft's cooperation with the PRISM program by the NSA. 20.5 MB | For Windows 7, Windows 8 / Vista / XPFree Ekiga Review - Download
Adds voice calling functionality to Gmail allowing you to make free calls within and to the United States and Canada as well as 800 numbers: The GMail Voice and Video Chat Plugin is software which enables you to make and take video and audio calls inside of your Gmail account. 763 KB | For Windows 7, Windows 8 / Vista / XPFree
VOIP Caller Extreme is a program which makes voice-over-IP calls possible over the Internet. 467 KB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree VOIP Caller Extreme Review - Download
GetThemAll Receiver is the Windows counterpart to the mobile applications available for Windows Mobile and Android. 1.3 MB | For Windows 7, Windows 8 / Vista / XPFree GetThemAll Receiver Review - Download
Ventrilo is a VoIP and messenger utility to communicate with your voice or text over a peer-to-peer network which the user has control over. | For Windows 7, Windows 8 / Vista / XPFree Ventrilo Review - Download
SoftPhone Client application enables users to place and receive low cost calls from any computer (PC) to any phone worldwide. 2.3 MB | For Windows 7, Windows 8 / Vista / XPFree
FrontlineSMS is a desktop software created to lower barriers to positive social change using mobile technology. 33.8 MB | For Windows 7, Windows 8 / Vista / XPFree
Popcompanion is a telephony tool which allows you to receive faxes on the Internet. 5.79 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree Popcompanion Review - Download
Virtual FAX driver for Windows: FaxMail is a 32-bit program which allows users to send and receive faxes in Windows. 1.03 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPShareware FaxAmatic Review - Download