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Table 3. Modem command list
Command
Description
Syntax
Values
ZZ
Z
Reset to default
conguration
ZZ
Z
+FCLASS+FCLASS
+FCLASS
Select Active Service
Class
+F+F
+F
CLCL
CL
ASAS
AS
SS
S
=<Mode> <Mode>
0: Select Data Mode
1: Select Facsimile Class 1
Mode
1.0: Select Facsimile Class 1.0
Mode
8: Select Voice Mode
+VCID+VCID
+VCID
Caller ID
+VC+VC
+VC
IDID
ID
=<pmode> <pmode>
0: Disable Caller ID reporting
1: Enables Caller ID with
formatted presentation to the
DTE.
2: Enables Caller ID with
unformatted presentation to the
DTE.
+VRID+VRID
+VRID
Report Retrieved Caller ID
+VRID+VRID
+VRID
=<pmode> <pmode>
0: Reports Caller ID with
formatted presentation to the
DTE.
1: Reports Caller ID with
unformatted presentation to the
DTE.
\N\N
\N
Operating Mode
\N\N
\N
<mode> <mode>
0: Selects normal speed
buffered mode (disables
error-correction mode)
and forces &Q6 (selects
asynchronous operation in
normal mode.)
1: Same as 0.
2: Selects reliable (error
correction) mode and forces
&Q5 (the modem will try to
negotiate an error corrected
link). The modem will rst
attempt a LAPM connection and
then MNP connection. Failure
to make a reliable connection
results in the modem hanging
up.
3: Selects auto reliable mode
and forces &Q5 (the modem
will try to negotiate an error
corrected link). This operates
the same as \N2 except failure
to make a reliable connection
results in the modem falling back
Chapter 2. Using your computer 59