Whistle Phone brings free inbound and outbound calling in the contiguous US to your Mac. We also offer international calling at low rates.
- Make and take calls from your desktop or mark yourself as unavailable
- Choose your look and feel from seven different skins
- Has built-in integration with your Mac's Address Book
- Includes two-line calling features, including call waiting and three-way calling
- Forwards your Whistle calls to any phone number via our Follow Me service
- Utilizes Apple's Bonjour technology to automatically discover and call Whistle users on your WiFi network
- Integrates with Growl for customizable missed-call notifications
And, one note: Your best experience is going to be with headphones. Using the built-in speakers and mic at the same time may cause echo.