No specific info about version 1.5. Please visit the main page of Telephone on Mac Informer.
It works like a telephone to let you make calls through your computer.
This phone recording software allows you to manually record telephone calls.
With the nCTI you use your computer as a remote control for your telephone.
ritz.mac Suite – Telephone, answering machine and sending faxes from your Mac.
SkypeMW is a PC to PC and PC to telephone mac application