Yealink SIP-T18P User Manual page 7

Make sure Yealink UAD is enabled. To check the UAD status click on the edit icon
corresponding to your Yealink phone.
Make sure Status is set to Active, Auto provisioning is set to No, and DHCP
is set to Yes.
Click on the Save button to save changes.
4.1.2 Creating Extension
1. Add Extension
Navigate to Extensions. Click on Add Extension.
The standard options window will be shown below.
Select Yealink phone model from the UAD select box.
Select Location: Local or Remote.
Local is for all extensions registered on the LAN and Remote is for all extensions
registered from remote networks, WAN, Internet etc.
© 2003 - 2012 Bicom Systems
Registering Phone 5