Trunk Group Registration binds an endpoint to a specific trunk and configures the authentication settings. This can be found in any Trunk Group by selecting the Registration option on the drop-down list that shows the IP Address options by default, as shown in the image below.
Configure the username and password.
Set the switch IP that you would like to use for authentication.
Click Create.
Next, enter that same authentication information and IP address into your endpoint (e.g. softphone, etc.). Once complete, your registration will allow you to make calls if the trunk group has proper routing and rating.
(/wiki/spaces/PP/pages/53018625)
Bound IP
A user can register an IP address to bind to the Registration or use network masks to whitelist a range of IPs by entering a mask alongside the IP, such as 192.168.1.0/23. The valid masks would therefore be from 22 to 31. During the registration process, if an IP was configured, the platform will verify the registration request is coming from the appropriate IP.