Google Voice, iCall and Evaphone allow you to use your laptop computer as a telephone and place calls to landline or mobile phones. Google Voice service allows you to place unlimited calls in the United States from your computer using your Google email account. This is accomplished by using the voice and video chat plug-in on your account. iCall and Evaphone offer limits to the length of the calls you can make and the number of calls allowed per day.
Open a browser on your laptop. Navigate to the Google Gmail website and log into your account. If you are not a Gmail user click "Create an account" and provide your personal information to create an account.
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Click the "Call phone" link just below the email options list. A dial pad will open to the right of your laptop screen.
Dial the number you would like to reach using your laptop keypad or by clicking the numbers on the dial pad with your mouse. Click "Call" to place your phone call.
Navigate to the Evaphone website and click "Register now" to create your online account. Click "Register" to save your account information.
Dial the number you would like to reach from your keypad and click the "Call" button. Press "Allow" in the "Adobe Flash Player Settings" to allow or deny the Evaphone software to access your camera and microphone. If you deny access to your microphone, you will not be able to use the calling service.
Click the red "End call" button to disconnect your call. Calls are limited to a certain number of minutes per day and users are only allowed two calls per day.
Open the iCall website on your Web browser and click "From your computer" followed by "Download iCall now." The software wizard will begin automatically. Follow each step of the setup wizard to ensure proper installation of your iCall phone.
Open the iCall software from your computer desktop and click dial the phone number you would like to call using your laptop's keypad or by clicking the numbers on the dial pad.
Click "Call" to place your phone calls. iCall phone calls are limited to five minutes and are automatically disconnected after the call reaches its limit. You can reconnect your call by calling the recipient from your iCall phone again.