What is an Extension Switch?

An extension switch is a specialized feature within a business phone system where a specific extension number is programmed to act as a "toggle." Instead of reaching a person or a voicemail box, dialing this extension activates or deactivates a specific system function.

Businesses use extension switches to control the behavior of their phone network on the fly. For example, an employee might dial an extension switch to instantly toggle the entire office into "Night Mode," redirecting all incoming calls to an after-hours service or a specific mobile device.