| 摘要 |
<p>PURPOSE:To obtain technology which can separate a call setting from a connection connecting and can connect a connection in accordance with various situations concerning a communication control system performing a call setting and a connection setting separately from each other in an ATM network. CONSTITUTION:A direct pass D-PASS is previously set between all the nodes. A call connection uses the direct pass D-PASS and connection connecting uses a route different from the direct pass D-PASS. Thus, the various kinds of services of B-ISDN can concretely be realized. One of the examples of those is that a transmission node 7 can set a connection pass C-PASS which reaches an incoming node 8 by way of a data conversion node 21 separately from the direct pass in the case of detecting the mismatching of layers between a transmission terminal 6 and an incoming terminal 13 at the time of connecting the call.</p> |
