Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with an at least partially meshed network of channel groups and with routing devices

摘要

Circuit arrangement for telecommunications switching systems, in particular telephone switching systems, with an at least partially meshed network of channel groups and with routing devices. Following successful seizure of an outgoing line in each case, unsuccessful call set-up attempts are counted on a group-individual, code-individual or code-part-individual basis and processed to form group-individual, code-individual or code-part-individual traffic overload grades in relation to the respective corresponding successful call set-up attempts or to all respective corresponding call set-up attempts. New call set-up requests are selectively marked on a group-individual, code-individual or code-part-individual basis according to these traffic overload grades in such a way that they are in some cases rejected according to the latter or are subjected during routing to a restriction which excludes a corresponding group. When group-individual traffic overload grades are formed, the corresponding groups can also be marked as inaccessible for the connection requests concerned. IMAGE