At the SAT interface prompt, enter change public-unknown-numbering <n>, where <n> is the number of digits for extensions.
The system displays the Numbering - Public/Unknown Format window.
On page 1 of this window, verify that appropriate values are set.
Important
You must define all of the numbers that appear as the first digits in the available extension numbers that use voice mail, and the path replacement numbers on page 8 of the change system-parameters features window.
Verify that the value of the Ext Len field is set to the number of digits for extensions. For example, if the dial plan is configured for 5-digit extensions, enter 5 in this column.
Verify that the value of the Ext Code field is the first digit or digits in the range of extensions for this site plus the path replacement numbers.
Verify that the value of the Trk Grp(s) field is the number of the new trunk group that you created while creating a trunk group for messaging.
Verify that the value of the CPN Len field is the number of digits for extensions. For example, if the dial plan is configured for 5-digit extensions, enter 5 in this column.
Press the key combination Control E to save the values set in this window.
