Abstract: A housing for a telephonic electronic component, such as a telephone headset amplifier, adapted to be positioned in supporting relation beneath a standard, desktop telephone. The housing generally includes a base unit that sits flush on a desktop, and an upper unit that is positioned in covering relation to the base unit, with an enclosed cavity being defined between the base and upper units. The upper unit includes an inclined, upwardly facing surface on which a telephone may be positioned, and a control panel extending across the entire width of the unit's leading edge. The control panel extends upwardly and outwardly from the upwardly facing surface, thereby defining a lip across the interface between the surface and control panel. The lip serves as an abutment which prevents the telephone from sliding off of the unit.

Abstract: A telephone line switching interface unit (10) connected between a telephone set (50) such as a multi-line telephone and a telephone accessory unit (60) that includes cordless telephones, FAX machines and telephone answering/recording machines. When the telephone accessory unit (60) is "on hook", an arriving telephone signal is answered normally at the telephone set (50). However, when the accessory unit (60) is placed "off hook", the control electronics, circuit elements (12)-(36), in the interface unit (10) cause the telephone signal arriving at the telephone set (50) to be automatically switched to and answered by the telephone accessory unit (60). The need for the accessory unit (10) arose from the problems encountered in connecting telephone accessories into multi-line telephones.