Call Restrictor (430-0952) Troubleshooting Faxback Doc. # 14748 IF YOU HIT THE HOOK-SWITCH RAPIDLY, IN SUCCESSION, IT WILL BYPASS THE RESTRICTOR; HOW DO YOU LIMIT THIS. There is no work-around for this problem. Q: When # is pressed to bypass, a busy signal is received. A: If the unit is on a PBX, detach the Call Restrictor and press #. If the busy signal persists, the unit may not work with the PBX. (TLC/ir-10/03/95)