Method and apparatus for processing call number information for a switching system

摘要

The controller of the switching system has a switching-oriented program that has two program parts allocated to it. A first program part is designed for processing call number information that has a first plurality of call number digit information. The second program part is designed for processing call number information that has a second, greater plurality of call number digit information. In the method of the invention, the call number plan of a private branch exchange is designed for a public switching system.