User’s Manual C-9
AT Commands
&Zn=x Store telephone number
This command is used to store up to four dialing strings in the modem’s
nonvolatile memory for later dialing. The format for the command is
&Zn=“stored number” where n is the location 0-3 to which the number
should be written. The dial string may contain up to 34 characters. The
ATDS=n command dials using the string stored in location n.
Result Codes:
OK n=0, 1, 2, 3
ERROR Otherwise
\Nn Er ror control mode selection
This command determines the type of error control used by the modem
when sending or receiving data.
\N0 Buffer mode. No error control.
\N1 Direct mode.
\N2 MNP or disconnect mode. The modem attempts to connect
using MNP2-4 error control procedures. If this fails, the
modem disconnects.
This is also known as MNP reliable mode.
\N3 V.42, MNP, or buffered (default).
The modem attempts to connect in V.42 error control mode.
If this fails, it attempts to connect in MNP mode. If this fails, it
connects in buffer mode and continues operation. This is
also known as V.42/MNP auto reliable mode (same as &Q5).
\N4 V.42 or disconnect. The modem attempts to connect in V.42
error control mode. If this fails, the modem disconnects.
\N5 V.42. MNP or buffered (same as \N3).
\N7 V.42. MNP or buffered (same as \N3).
Result Codes:
OK n=0,1,2,3,4,5,7
ERROROtherwise
\Qn Local flow control selection
\Q0 Disable flow control.
\Q1 XON/XOFF software flow control.
\Q3 CTS/RTS to DTE (default).
Result Codes:
OK n=0,1,3
ERROROtherwise
\Vn Protocol result code
\V0 Disable protocol result code appended to DCE speed.