On the left side of the page, find the word “extensions” and click the yellow and white + button to the right of the word
Find the word that says “Lines” under the extensions tab, and click it.
Towards the top of the page, you will see a blue button that says “+ New Extension Line” click that button.
Select the location that this extension will be tied to. (Usually the main location)
Change the “OutDial® Extension” to say, “Yes” this will reveal the “outdial options”
In the outdial options part, you will add a “Forwarding Number”. Enter the desired cell phone number here.
Click “Create New Line” at the bottom of the page.
Next, we will find “Ring Groups” in the same area we found “Lines” and click on ring groups
Find the ring group that we want to add the cell phone to. Ring group 200 is usually the primary ring group, though you may need to check your switch board to identify which ring group you want to place it in.
Once you are in the ring group scroll down just a little
You will see two columns, one will say “members in group” these are the extensions that ring in the ring group. The other will say “Available Members for group”.
You can add any of these to the ring group. Find the created extension and add it to the ring group by clicking on it.
Click update ring group just above the columns, and you have added a cell phone to the ring group!