Radio buttons, which are also called option buttons, provide a quick way for users of your custom Excel forms to quickly answer questions with a small, clearly defined set of options.

Option buttons, also referred to as radio buttons, let you choose one item from a list. Toggle buttons are either enabled or disabled, allowing you to switch between two states, such as on and off.

This will ensure that spammers don't end up tying up your home surveillance account. Click the same radio button option under Calls>Call settings and IM & SMS>IM settings.