A Functional Testing Approach for Interworking Between CCS7 and Other Signaling Systems
01 January 1991
In 1990-1992 AT&T will either deploying new or upgrading existing 5ESS (R) Gateway Switches in several countries to support Common Channel Systems No.7 (CCS7). These gateway switches are or will be handling all the international telephone calls from, to ,and through a country. As a result they need to support a variety of signaling systems; and with the addition of Common Channel Signaling Systems No.7, proper interworking between CCS7 and other signaling systems needs to be verified.