Labels:text | black and white | font | diagram OCR: Nick's Easy Guide to CCITT Signalling Systems This refers to signaling system Rl, which is shoun as 3.2 lei; - hand cade in the above chart. Tha 3 extra The CCITT has set standards for signalling combinations are 11, 12. and ?. I suspect this unknown code systems in use throughout the world. Almost all Y. Cmhar codes are shown on the right-hand side . I have provisions for our beloved MF tones so don't Astic guess that 1300-1700 is code BV in light of the above Worry. You might like to try experimenting with ENote. SPECIAL SIGNAL SUBSETS some of these archaic systems. This information is . from the 1975 CCITT Orange Book. CCITT 5 11 inward operator IS CHEAP CCITT #1. This is an old international system 17 - delay orerator . using 500/20 hz signalling. terminal call The 500 hz xas interrupt ...
