User's Manual

V23C V.23, with constant carrier, 1200 bps forward and 300 bps reverse
V32 V.32 4800 and 9600 bps
V32B V.32 bis 7200, 9600, 12,200, and 14,400 bps
V34 V.34 asymmetrical connections: 2400, 4800, 7200, 9600, 12,200,
14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800, 31,200, and
33,600 bps
V34S V.34 symmetrical-only connections: 2400, 4800, 7200, 9600, 12,200,
14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800, 31,200, and
33,600 bps
V34B V.34 extended asymmetrical connections: 2400, 4800, 7200, 9600,
12,200, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800,
31,200, and 33,600 bps
V34BS V.34 extended symmetrical connections: 2400, 4800, 7200, 9600,
12,200, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800,
31,200, and 33,600 bps
V90 56kbps V.90 asymmetrical connections (transmit): 4800, 7200, 9600,
12,000, 14,400, 16,800, 19,200, 21,600, 24,000, 26,400, 28,800, and
31,200 bps, 56kbps V.90 asymmetrical connections (receive):
33,333, 37,333, 41,333, 42,667, 44,000, 45,333, 46,667, 48,000,
49,333, 50,667, 52,000 and 53,333 bps
+MS – Modulation Selection:
<automode> When enabled this parameter allows the modem to negotiate
modulation speeds automatically (if an automatic value is defined for that
particular modulation). This feature is also controlled by the Nn AT command.
The automode setting is based on which command, Nn or +MS=m, was
issued last.
Range: <automode>=0, 1
Default:<automode>=1
<automode> = 0 Disabled
<automode> = 1 Enabled
<min rate> This parameter specifies the lowest data transfer rate at which the
modem may establish a carrier signal connection.
Range: <min rate> = 0, 300, 1200, 2400, 4800, 7200, 9600, 12,200, 14,400,
16,800, 19,200, 21,600, 24,000, 26,400, 28,800, 31,200, 33,600, bps
Default: <min rate> = 0
2-14 AT COMMANDS: DATA MODEM