Toshiba V.90 - Manual (Page 53)

AT Commands
AT command formats
34
+MS Command
This command can be used to set protocol and connection speed
parameters for the modem. Instead of having to change multiple S
registers, this single command produces the same effect. The
command can also be used to provide information concerning the
current modem protocol settings and maximum connection speed
settings. In addition, it can be used to indicate all the possible
settings available for the modem.
5 32000 bps
6 33333 bps
7 34666 bps
8 36000 bps
9 37333 bps
10 38666 bps
11 40000 bps
12 41333 bps
13 42666 bps
14 44000 bps
15 45333 bps
16 46666 bps
17 48000 bps
18 49333 bps
19 50666 bps
20 52000 bps
21 53333 bps