I t is the opinion of the CCITT that the information contained in Recommendation V.35 is out of date. Therefore it is not recommended to use the techniques described in this Recommendation for new designs.
Alternative techniques are described in Recommen
ITU-T V.36-1988 history
1988ITU-T V.36-1988 MODEMS FOR SYNCHRONOUS DATA TRANSMISSION USING 60-108 kHz GROUP BAND CIRCUITS