In telecommunications the cooperation of more than one devices of the same system is a
general requirement. Hence, the cooperation in this situation does not only mean the presence of
the physical contact, but also the satisfaction of semantic requirements. This can be illustrated by the
Jacobson model for communications saying that not only the channel is needed, but the successful
process also requires common semantics, a common language. In telecommunications this language
is called a protocol.
The Telecoms Audition Lab of the BUTE Department of Telecommunications is capable of
checking the cooperation of ISDN user end equipment, thus the conformance testing.
The goal of this paper is to provide a method for extending this capability to network
termination devices and this way to complete the conformance testing abilities of the lab.
The method is based on current standards and recommendations. The general idea of the
development process is to consider the Department’s fiscal and technological limitations and still
provide a useful solution.
The new method is extending the lab’s protocol tester’s investigation capabilities by
presenting a way to easily implement further testing modules. This is done by implementing a
reference call’s conformance test program, which means a full calling cycle from the establishment of
the call to the release of the line.
This paper presents the requirements and flow of the process, and summarizes the findings
in a standardized test report.