To Download the MyPhone Installation File go to: "Personal Settings" > "Personal Software IP-Phone" in the "Private Area" menu group.
Press the Download Button and save the Installation file somewhere on your hard disk:

Execute the downloaded EXE file and follow the installation instructions.

     To Configure your IP-Phone to be used as one of the Endpoints registered to your name go to: "Endpoints" in the "Home Menu" menu group.
Choose the Endpoint that you wish to use with your IP-Phone from the list. If there are no endpoints registered to your name or you wish to create a new endpoint contact your system administrator.
In the Endpoint Information Screen find the following section and follow the instructions:

     To Start your software IP-Phone under Windows go to: Start > Programms > MyPhone. Now the endpoint you have configured to work with your software IP-Phone should appear in the list of Active Endpoints in your "Home Menu" group.
To Make a call enter the phone number you wish to call and press "Call".