This modem is intended to be used primarily on special quality leased circuits, e.g. Recommendation M.1020 [ I ] or M.1025 [2] circuits but this does not preclude the use of this modem over circuits of lower
quality at the discretion of the Administratio
ITU-T V.29-1988 history
1988ITU-T V.29-1988 9600 BITS PER SECOND MODEM STANDARDIZED FOR USE ON POINT-TO-POINT 4-WIRE LEASED TELEPHONE-TYPE CIRCUITS