3Com 56k User's Manual And Reference page 53

M3 Speaker ON after dial, until
CONNECT
On Returns online
O0 Returns online
O1 Returns online and retrains
Qn Displays/suppresses result codes
Q0 Displays result codes
Q1 Quiet mode; no result codes
Q2 Displays result codes
only in Originate mode
Sr.b=n Sets bit .b of register r to n (0/OFF or
1/ON)
Sr=n Sets register r to n
Sr? Displays contents of S-Register r
S$ Displays a list of the S-Registers
Vn Displays verbal/numeric result codes
V0 Numeric codes
V1 Verbal codes
Technical Reference
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