ITU-T R.75 BIS-1989 Maintenance Measurements of Character Error Rate on International Sections of International Telegraph Circuits - Telegraph Transmission (Study Group IX) 1 pp
Maintenance Measurements of Character Error Rate on International Sections of International Telegraph Circuits - Telegraph Transmission (Study Group IX) 1 pp
ITU-T R.75 BIS-1989 history
1989ITU-T R.75 BIS-1989 Maintenance Measurements of Character Error Rate on International Sections of International Telegraph Circuits - Telegraph Transmission (Study Group IX) 1 pp