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Reply To: what is c2 signalling


We use R2 to link our company PABX and PSTN. I am new in these field. My question is, if I trace a R2 trunk and someone dials, I see something like; 8/5-1/7-A/3-5/A-etc. Is there a standard meaning to all of these numbers? I know these are the numbers being dialed and answered by the other end but I need to know the right meaning of each. like if I send 8, I should get a ???, sort of.

Thanks in advance.