CLIENT Name of the client entity. LINK Name of the DDCMP link that the client is using. LOGICAL STATION Name of the DDCMP link logical station supplied by the client when the port was opened. STATE State of the port. OPEN - The port is assigned to a client. OPEN DISABLED - The port is assigned to a client, but the link or logical station entity used by the port is disabled. CALL ATTACHED - The port is assigned to a client and the link is associated with the current call on the line. Applies only when the link operates over a switched line. TYPE Type of port. NORMAL - For normal data communications. SERVICE - For service operations. This is the value that modules