ITU-T G.223-1988 Assumptions for the Calculation of Noise on Hypothetical Reference Circuits for Telephony - International Analogue Carrier Systems (Study Group XV) 9 pp
CCITT Recommendation Character error rate objective for telegraph communication using 5-unit start-stop equipment, Vol. II, Rec. F.lO.
ITU-T G.223-1988 history
1988ITU-T G.223-1988 Assumptions for the Calculation of Noise on Hypothetical Reference Circuits for Telephony - International Analogue Carrier Systems (Study Group XV) 9 pp