System, evaluation device and method for verifying connection-related communication data determined by a digital exchange

A system evaluator, comprising:

• at least one interface for linking an evaluator to a digital switching exchange;
• at least one interface for linking the evaluator to a test unit, including:
• a device for recognizing interrelated communications data records which are assigned to a test communications connection, and
• a device for comparing the contents of a connection-related reference data record produced by the test unit to the contents of each communications data record of interrelated communications data records produced by the digital switching exchange with regard to the test communications connections
• wherein the test unit includes a first memory unit for storing connection-related communications elements, a device for producing the connection-related reference data record from corresponding connection-related communications elements, and a device for transmitting the connection-related communications elements to the digital switching exchange, and
• wherein the digital switching exchange functions in response to the received connection-related communications elements to establish the test communications connection.

A method for validating connection-related communications data collected by a digital switching exchange, comprising the following steps:

• a) storing a plurality of communications elements in at least one test unit capable of being linked to a digital switching exchange;
• b) initiating the establishment of at least one dedicated test-communications connection at the test unit;
• c) transmitting the connection-related communications elements to the digital switching exchange;
• d) establishing the relevant test communications connection in response to the received, connection-related communications elements;
• e) generating a reference data record from the connection-related communications elements, from the beginning and ending instants of the corresponding communications connection in the test unit;
• f) generating a plurality of interrelated and connection-related communications data records in the digital switching exchange;
• g) following the connection cleardown, the reference data record and each communications data record of the corresponding test communications connection are transmitted to a system evaluator;
• h) recognizing interrelated communications data records which are assigned to the test communications connection;
• and
• i) comparing contents of the connection-related reference data record to contents of each of the interrelated communications data records.