Toshiba Satellite user manual AT Command

	V.90/V.92
V42bis	V.42 error control and V.42bis data compression
V42	V.42 error control only
NoEC	No error control protocol

AT Command

-V90=*	V.90 Dial Line Rate
	-V90 sets the maximum V.90 downstream that the
	modem attempts to connect
-V90=0	V.90 disabled
-V90=1	V.90 enabled: automatic speed selection -
	maximum modem speed(default)

User’s Manual C-3