The preparation for my meeting presentation is proving to be an useful
exercise. I found an error in the mapping of event codes 138-142. Here
different signals of Signalling Systems No. 5 and R1 should have the
same event code because they are physically identical (same combination
of frequencies). Based on that principle, the mapping should be as
follows:
Code Current Corrected
138 Code 11, KP3P, ST3P no change
139 KP, KP1 Code 12, KP', STP
140 KP2, KP2P, ST2P KP1, KP
141 ST KP2, KP2P, ST2P
142 Code 12, KP', STP ST
Tom Taylor
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Audio/Video Transport Working Group
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