The 4.0.0 version of ZCalls-b1 is provided as a free download on our website. The program belongs to Communication Tools. This free PC software was developed to work on Windows XP, Windows 7, Windows 8, Windows 10 or Windows 11 and can function on 32-bit systems. The most frequent installer filename for the program is: ZCalls-b1.exe. This free program was originally created by ZCalls-b1. The most popular version of the ZCalls-b1 4.0.
From the developer:
ZCalls-b1 is a free PC dialer that enables you to stay in touch with friends from all over the world directly from your desktop computer. You can send and receive instant messages, add, edit and delete contacts from your phone book and make cheap international calls.
You may want to check out more software, such as Active Worlds, USRobotics Cordless Skype Dual Phone or Cordless DUALphone Suite, which might be similar to ZCalls-b1.