Extensions

Create the internal numbers your team uses to make and receive calls.

Create an extension

Go to PBX → Extensions and add an extension.
Fill in the fields below and save.

Field	What to enter
Extension	The internal number, e.g. 1001. Must be unique in your account.
SIP Password	Used by the phone to sign in. Use a long, random password — anyone with it can make calls on your account.
Display Name	The person's name, shown to colleagues on internal calls.
Caller ID Number	The number shown to people this extension calls outside the company.
Voicemail PIN	Used to listen to voicemail from the phone.
Department	Optional. Extensions in a department see only their own team.

The Extensions page listing each extension number, name, voicemail status and actions — Every extension in your account, with its SIP details behind Edit.

Departments

Create departments under PBX → Departments and assign extensions to them. People in a department only see their own team's extensions and activity, which keeps larger organisations tidy and private.

Limits

Your plan sets the maximum number of extensions and simultaneous calls. If you reach a limit, contact us to upgrade.