Extension Overview

An extension is a short internal number. Extensions allow users to make and receive calls. You can assign extensions to every employee in your organization.

Extension types

Yeastar P-Series Software Edition supports SIP extension, which is based on SIP protocol.

To use a SIP extension to make or receive calls, you need to register the extension on an IP phone or a softphone.

For more information, see the following topics:

Create a SIP Extension
Set up a SIP Phone
Set up a Remote SIP Phone via Public IP Address and Port
Set up a Remote SIP Phone via Yeastar FQDN

Online status

Online status allows you to view status of phone endpoints and Linkus clients.

Phone endpoints
- indicates that the SIP extension is registered and ready for use.
  Hover your mouse over to view the IP addresses of SIP phones where the extension is registered.

Linkus clients
- indicates that Linkus Desktop Client is ready for use.
- indicates that Linkus Mobile Client is ready for use.
- indicates that Linkus Web Client is ready for use.