Product Catalog: Telecommunications Systems: Time Change Information Categories Nortel Norstar System Time Change CICS and MICS Systems Time Change for CTX 100, CTX 670 Time Change for CTX 100, CTX 670 Toshiba DK 40,280,424,424i Time Change Information for DK 40,280,424,424i Toshiba Legacy DK 8,16,24,56,96 Toshiba Legacy 1 DK14, DK16e, DK40, DK40i, DK280, DK424, DK424i Toshiba Perception e and ex