(<max_rx_rate>) rate supported by the selected carrier.)
<min_tx_rate> and
<max_tx_rate> Numeric values which specify the lowest (<min_tx_rate>) and
highest (<max_tx_rate>) rate at which the modem may establish a
transmit connection. Non-zero values for this subparameter are
decimal encoded, in units of bit/s. The possible values for each
modulation are listed in Table 3-1. Actual values will be limited to
possible values corresponding to the entered <carrier> and fallback
<carrier> as determined during operation. (Default = lowest
(<min_tx_rate>) and highest (<max_tx_rate>) rate supported by the selected carrier.)
Reporting Current or Selected Values
Command: +MS?
Response: +MS:
<carrier>,<automode>,<min_tx_rate>,<max_tx_rate>,<min_rx_rate>,<max_rx_rate>
Note:
The current active settings are reported under control of the +MR parameter.
Example: +MS: K56, 1,75,33600,75,56000
For default values. This example allows maximum system flexibility to
determine optimal receive and transmit rates during operation.
Reporting Supported Range of Parameter Values
Command: +MS=?
Response: +MS: (<carrier> range),(<automode> range),(<min_tx_rate> range),
(<max_tx_rate> range),(<min_rx_rate> range), (<max_rx_rate> range)
Example: +MS: (B103,B212,V21,V22,V22B,V23C,V32,V32B,V34,
K56,V90),(0,1),(75-33600),(75-33600),(75-56000),(75-56000)
Result Code
OK Valid subparameter string
ERROR Otherwise.
+MR - Modulation Reporting Control
This extended-format numeric parameter controls whether or not the extended-MCR:
<carrier> and +MRR: <rate> intermediate result codes are transmitted from the modem to the
DTE (see Section 3.5 and Table 3-14). If enabled, +MCR: <carrier> and +MRR: <rate>
intermediate result codes represent the current (negotiated or renegotiated) modulation
<carrier> and <rate> that are transmitted at the point during connect negotiation
(handshaking) at which the modem has determined which modulation and rate will be used,
i.e., before any Error Control or Data Compression reports are transmitted, and before any
final result code (e.g., CONNECT) is transmitted.
S95 bit 2 is reset to 0 for +MR=0 and is set to a 1 for +MR=1 or +MR=2. The more recent
setting of +MR or S95 bit 2, and the W command setting, determines modulation result code
reporting (see S95 Parameter and W Command).
Syntax
+MR=[<value>]
Defined Values
<value> A decimal number corresponding to the selected option:
0 Disables reporting of modulation connection (+MCR:
and +MRR: are not transmitted).
1 Enables reporting of modulation connection (+MCR:
and +MRR: are transmitted). (Default.)
2 Enables reporting of modulation connection (+MCR:
and Receive Rate Only: are transmitted).
Reporting Current or Selected Values
Command: +MR?
Response: +MR: <current value>
