deltathree.com PC-to-Phone 2.1.105 that could have been downloaded from our website for free. The most popular version of the software is 2.1. The actual developer of the free program is deltathree.com. The program lies within Communication Tools, more precisely Instant messaging.
From the developer:
Make and receive low-cost calls from any PC to any phone worldwide. Enjoy making and receiving superb quality calls with PCPhone using broadband or dial-up connections.
Create your own Branded PC to Phone Dialer by customizing PC to Phone with your logo and brand - choose the colors, links, ad banners, and more!
You may want to check out more software, such as PCPhone or iConnectHere SoftPhone, which might be related to deltathree.com PC-to-Phone.