Express Talk is software that works like a telephone to let you make calls on your Mac OS X. 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.

Lets you make internet phone calls free direct PC to PC, or PC to phone via a VoIP SIP gateway provider. Configure up to 6 lines on the one phone with the ability to put calls on hold. Supports caller ID display and logging. Includes a phone book with quick dial. Integrates with Microsoft Address Book. Supports call transfer. Lets you record phone calls to wav.

Allows up to 6 people to join one call using the Call Conferencing feature. Allows for quicker and easier communication using the Push To Talk intercom. Includes Do Not Disturb button.