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Phone Extensions

Provide direct access to employees and departments with 4-digit phone extensions.

4-Digit Extensions for People & Departments

“Or if you know your party’s extension, you may dial it now…” Phone extensions make it easy for callers to reach people and departments that don’t have a direct line. Callers simply dial the person or department’s 4-digit extension from your company phone number’s welcome menu.

User and Department Avatars with 4-Digit Phone Extensions Labeled Below

9,000 Extensions for One Low Price

With Tresta’s flat monthly pricing, you only pay for the users and phone numbers on your system – not the number of phone extensions you assign. Tresta’s extensions use a 4-digit numbering scheme (1000-9999) and can be assigned to any user, group or forwarding phone number on your system.

Tresta Virtual Phone App with Company Phone Number and Extensions

Make Updates to Your Extensions Any Time

When you add a new team member or part ways with a former employee, it’s easy to make changes to your phone extensions. Just sign in to Tresta’s web management app, and you can make the needed updates with just a few clicks.

Tresta Web App showing the Exensions Screen and a User's Profile

It’s Easy –
Let’s Start Here

Tresta makes it easy to get a new phone number or transfer your current one.