Abstract: A method for providing narrowband-related service features to subscribing broadband lines comprises establishing a composite voice path interconnecting a narrowband server and the subscribing broadband line via a broadband switching fabric. Particularly, a call set-up signal is received in a broadband call processor, converted to narrowband signaling format and extended to a designated narrowband server. Responsive to receipt of the call set-up signal, the designated narrowband server establishes a narrowband voice path interconnecting a narrowband network element to a synchronous-asynchronous converter. Subsequently, the broadband call processor establishes a broadband segment interconnecting the subscribing broadband line with the synchronous-asynchronous converter. The broadband segment corresponds to the narrowband voice path to form a composite voice path. The composite voice path is used by the designated narrowband server to provide narrowband-related service features to the subscribing broadband line.

Abstract: A high speed time multiplexed switch (TMS) fabric unit for use in a telecommunications system having relatively low speed TMS access links. To receive signals from the low speed access links, the TMS fabric unit of the invention consists of a plurality of programmable multiplexers where each programmable multiplexer is connected to a predetermined number, J, of the access links. Each access link carries M time slots where M is a relatively large number, i.e. 100. The programmable multiplexers put the content of the access links onto two high speed links. The speed of the high speed links is at least J times the speed of the access links such that for each time slot on the access links there is a fixed group of at least J time slots on each high speed link. Each of the two high speed links deliver the signals to at least one high speed TMS fabric where the speed of the high speed links is matched to the reconfiguration rate of the high speed TMS fabric.