CALLWORLD 4.0 that could have been downloaded from our website for free. The program's installer is commonly called CALL2WORLD.exe, CALLWORLD.exe, Lions.exe, PC2Phone.exe or _288B5938ED17F3DFD96B1A.exe etc. The program lies within Communication Tools, more precisely Instant messaging. This free PC program is developed for Windows XP/Vista/7/8 environment, 32-bit version. The most popular versions among CALLWORLD users are 4.0 and 1.0. The actual developer of the free program is CALLWORLD.
From the developer:
Pay as you go plans let you save money on all of your calls without a monthly bill. Use your own SIP device, your computer's microphone and headset or one of our cutting edge Internet Telephony devices and get more use out of your Internet connection.
Call any number in the world based on our low International rates. When your account gets low we notify you so you can easily add more call credit from our web site, day or night.
You may want to check out more software, such as Active Worlds, USRobotics Cordless Skype Dual Phone or Cordless DUALphone Suite, which might be related to CALLWORLD.