FIELD: communication. SUBSTANCE: present invention refers to communication system comprising communication equipment KV and equipment testing communication equipment and to procedure testing communication equipment. Communication equipment has collection of telephones from T1 to Tn and transmitting station UEV for signal transmission. Testing equipment includes central signal processing facility ZV with programmed processing device S for generation of digital test signals testing communication equipment KV and converter WV connected to programmed data processing device S. Converter WV is so designed that it converts digital test signals of data processing device S under control of particular configuration of telephone to control operation of keyboard and microphone of telephone Tn via connecting unit AV. So it converts dial tone received from loudspeaker and calling unit of telephone Tn to digital operation response signals and transmits them to programmed data processing device S where they are stored or evaluated. EFFECT: enhanced efficiency of communication equipment and testing procedure. 18 cl, 11 dwg
