The Bell System Technical Journal vol. 57 no. 2, February 1978, Common Channel Interoffice Signaling.
AT&T 1978, pp 221-477 inclusive, references, diagrams, photographs.
Condition: Very Good overall, light blue paper covers, some fading to backstrip and covers, small creases to cover corner rear. The binding is strong and secure, pages clean and unmarked.
Issue on Common Channel Interoffice Signaling includes, overview by Ritchie and Menard; History and Description of a New Signalling System (Dhalbom and Ryan); Implementation Planning; Signalling Network; 4A Toll Crossbar Application; No. 4 ESS Application; Technology and Hardware; Development Tools; MORE.