METHOD AND APPARATUS FOR SIGNALLING AND FRAMING IN A TDM COMMUNICATION SYSTEM

摘要

METHOD AND APPARATUS FOR SIGNALING AND FRAMING. IN A TIME DIVISION MULTIPLEX COMMUNICATION SYSTEM A TDM communication method and system provides signaling between a digital central office and a remote line switch over a Tl line involving combined commonchannel and D2 signaling with retention of twenty-four PCM communication channels. The invention also embodies novel means and techniques for out-of-frame detection and reframing.