Free VoIP Software Phones

VoIP, or Voice over Internet Protocol, is a cost-effective answer to your telephone demands. It enables you to make low-priced calls to anyone, wherever you may be in the world, with the use of your VoIP phone handset or your PC. Moreover, calls within the network of the provider are free of charge.

Here is a list of free VoIP Software phones available in the market.


Wengophone is an SIP (Session Initiation Protocol) phone enabling its users to communicate from a computer to other users of SIP accommodating VoIP software at no cost. It also enables its users to call cell phones and landlines, make video calls, and send SMS messages. None of these functions require a specific SIP provider. This means they can be used with any provider present in the market, unlike proprietary solutions like Skype.

Speak Freely

This phone is a 100% free Internet telephone first designed by John Walker in 1991. After April 1996, he stopped developing the program. Since then, various other Internet phones have been produced across the globe. However, most of these programs charge its users. Majority of these programs have poor sound quality and do not support the fundamental features of Speak Freely such as selectable compression, the answering machine, and encryption.


Previously known as GnomeMeeting, this VoIP phone is an H.323 compatible VoIP-IP-Telephony and video conferencing application. It enables the user to make video and audio calls to other users with H.323 hardware or software, such as MS NetMeeting and Netscape Communicator. Ekiga supports all video conferencing features to make multi-user conference calls with an external MCU. It also allows the user to make computer-to-phone calls, use modem Quicknet telephony cards, and register to an ILS directory. It also provides gatekeeper support.


Twinkle is a phone for VoIP communications using the Session Initiation Protocol. You can use Twinkle in a network using an SIP proxy to route your calls or for direct IP phone to IP phone conversations.

Aside from making indispensable voice calls, this phone also offers an astounding number of features, namely:

  • 3-way conference calling;
  • call waiting;
  • multiple active call identities;
  • 2 call lines;
  • blind call transfer;
  • reject call redirection request;
  • out-of-band DTMF (SIP INFO);
  • user definable number conversion rules;
  • STUN support for NAT traversal;
  • RFC 2833 DTMF events;
  • automatic failover to an alternate server if a server is unavailable;
  • call redirection when busy, no answer, on demand, unconditional; and
  • a whole lot more

Other free VoIP software phones include but are not limited to:

  • linphone;
  • minisip;
  • OhPhone;
  • Internet Switchboard;
  • SIPSet;
  • Kphone; and
  • Jabbin.

Additional Resources on VoIP Software Phones