Trying to call forward an extension to analog ext and external bell for nite usage. The ext is 2228 and trying to forward xxx-2228 (did) to ext 347. It seems as though this did line appearance is on a couple other sets which ring when someone dials this did #, or a call coverage of that extension. Because of this the call forward won't take place. If you dial the extension it works fine. If I set it for another phone in the office which has a different did# which doesn't appear or ring anywhere else it also works fine. Any suggestions on how the remedy this situation?