In order to make video calls to a PC using the Tango application, the PC user you want to contact needs to install the program on his computer. The user also needs to provide a phone number in order to create an account.
In order to install the Tango program, the PC user you want to contact needs to go to the Tango homepage and locate the Free Download button. He then selects the PC user option, and the download begins to install on the computer. After the software has been set up, the user creates an account and includes a phone number from a mobile phone or land line. By using a mobile phone number, contacts from your phone are automatically added. Another option is to sign up for a Google Voice number, which is a free service.
Next, the user needs to add you as a contact. This can be done by entering the email address or mobile number you provided when signing up for your own account. You are also able to add the PC user as a contact using the same method. The PC user also needs a camera and microphone connected to the computer in order to make a video call.