PCI Modem Card User's Manual
56
rate have been determined and before any error control or data compression
reports or the final result code (e.g., CONNECT) is transmitted.
+MR=0 Enables the modulation report (default).
+MR=1 Disables the modulation report.
+MS
=<ca
rrie
r
>,<a
uto
mo
de>,<m
in_
ra
te>,
<max_
rat
e>—
Mod
ulat
ion
Selection
Use this command to set the modem’s modulation, the modulation’s
minimum and maximum transmission rate, and the status of automatic
modulation negotiation (automode). The <carrier>, <min_rate>, and
<max_rate> parameters define the modulation and its minimum and
maximum rates.
Th
e
<au
t
omode
>
par
a
met
er e
n
able
s or
di
sa
bl
e
s aut
oma
ti
c m
odu
l
at
i
on
negotiation. If a subsequent +MA command is not provided, the automode
parameters are constrained by the modulation set by the <carrier> parameter.
The +MA command can further restrict the automatic modulation
negotiation settings but it cannot set a modulation that is higher than the
modulation set by the +MS command.
Valid <carrier> Values:
V92 V.92 (default)
V90 V.90
V34 V.34
V32T V.32ter
V32B V.32 bis
V32 V.32
V22B V.22 bis
V. 2 2 V. 2 2
Bell212A Bell 212A*
V23C V.23, constant carrier, asymmetric FDM
V21 V21
Bell103 Bell 103
Aut
oma
t
i
c mod
u
l
at
i
on ne
got
i
a
ti
on
i
s e
nab
le
d or
di
sa
bl
e
d by <a
ut
om
ode
>.
However, if a value is specified for the <max_rate>, then automatic rate
selection is disabled and the modem will attempt to connect at the specified
rate.
Valid <automode> Values:
0 Disables.
1 Enabled (default).
