Hello -

I am just installing my 1st Officeserv 7100 but I'm getting, "Invalid Number begin again" on D5121 Display, when pressing the line key. It was supposed to be ready right out of the box. I am about to check the cards to see if they are seated correctly but I am wondering if maybe I messed up the Numbering Plan? It came default as exts 201 thru 208 which I tried to change to a 100s scheme, but could not. If anyone can shed some light on this, would be greatly appreciated!

Al