| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inherent protocol parameter absorption system which improves reliability, productivity and maintainability only through a protocol control module. SOLUTION: Protocol-protocol information parameters (1-3) and service- protocol information parameters (1-4) are defined on call control primitives (1-1) between UNI/NNI protocol control modules 1a and 1b and subscriber/relay basic call control modules 2a and 2b and between a sending subscriber/relay basic call control module 2a and a receiving subscriber/relay basic call control module 2b, and the sending and receiving UNI/NNI protocol control modules 1a and 1b have the parameter of call control signals (1-2) and means which perform mutual mapping. The parameters (1-3) are relayed with through by the modules 2a and 2b, and the parameters (1-4) are referred to and set by service modules 3a and 3b.</p> |
