A system and method for conditioning an alternating current power transmission for supply to a load circuit. A groove portion is provided at an inner surface side of the upper rail. Receiving a call, the central communication network simultaneously routes the call to a plurality of preprogrammed numbers on the PSTN and on the IP network. Some embodiments also have a flexible cantilevered member positioned above a portion of the accessory tray to trap an accessory against the accessory tray. The output coupler is positioned at a predetermined distance away from the gain fiber such that a generated pulse has a pulse width in the laser cavity, the pulse width being narrower than a predefined pulse width value.