b. To emulate issuance of the N1S37=x sequence command, specify
the modulation and the rate to start automoding down from using <mod> and
<max_rate>, respectively. Set <min_rate> to 300 to allow automoding all the way
down to V.21 300 bps. For example:
AT+MS=11,1,300,16800 selects automode starting at V.34
16800 bps (no comparable S37 command).
AT+MS=9,1,300,12000 selects automode starting at V.32 bis 12000 bps
(same as N1S37=10).
3. <min_rate> is an optional number which specifies the lowest rate at
which the modem may establish a connection. The value is decimal coded, in
units of bps, e.g., 2400 specifies the lowest rate to be 2400 bps. The default is
300 for 300 bps.
4. <max_rate> is an optional number which specifies the highest rate
at which the modem may establish a connection. The value is decimal coded, in
units of bps, e.g., 14400 specifies the highest rate to be 14400 bps. The default
is 28800 for 28800 bps.
5. <x_law> is an optional number which specifies the codec type. The
options are:
0 = m-Law
1 = A-Law
Note that ATZ will reset the <x_law> selection to 0 (m-Law).
6. <rb_signaling> is an optional number which enables or disables
robbed bit signaling generation in a server modem or enables or disables robbed
bit signaling detection in a client modem. The options are:
0 = Robbed bit signaling generation (server modem ) or detection
(client modem) disabled (default)
1 = Robbed bit signaling generation (server modem ) or detection
(client modem) enabled
Note that ATZ will reset the <rb_signaling> selection to 0 (disabled).
AT+Hn Enable/Disable RPI and DTE Speed
This command enables or disables Rockwell Protocol Interface (RPI)
processing and sets the DTE speed. (Applicable only to modems supporting RPI
and RPI+). +H0 Disable protocol interface and video ready mode.
AT+H1 Enable RPI mode and set DTE speed to 19200 bps.
AT+H2 Enable RPI mode and set DTE speed to 38400 bps.
AT+H3 Enable RPI mode and set DTE speed to 57600 bps.
AT+H11 Enable RPI+ mode (applicable only to modems supporting RPI).
When in RPI+ mode, a link is established between the modem and the WinRPI or
WinRPI95 host PC software driver to allow the modem to support protocol
(V.42bis/LAP-M/MNP2-5) connections with a remote modem. This command
should only be used when the WinRPI or WinRPI95 driver software is installed in
the PC.
AT+H16 Enable video ready mode
