METHOD AND APPARATUS FOR TRANSFERRING A DATA CALL THROUGH A PBX

摘要

The operating logic of a first communication interface device (124*), a callee, is enhanced to include logic for transferring a direct inward dial data call it received from a second communication interface device (124*), the caller, to a compatibly equipped third communication interface device (124*), the transferee, coupled to the same PBX (18). The operating logic of the second and third communication interface devices, the original caller and the transferee, are also enhanced to include logic for cooperating with the first communication interface device to effectuate the transfer. Preferably, the operating logic of first, second, and third communication interface devices are further enhanced with the enhancements provided to the second and third, first and third, and first and second communication interface devices respectively, to allow each of the three communication interface devices to be the caller having its call transferred, the transferor callee, as well as the transferee callee, at different points in time.