Hardware manual

5901 High Speed Dialup Modem Hardware Manual
October 19, 2007
58
10.4.23 +MR=n - Modulation Reporting Control
This extended-format numeric parameter controls whether or not the extended-format
+MCR:<carrier> and +MRR:<rate> intermediate result codes are transmitted from the modem to the
DTE. 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).
Command: +MR=[n]
n A decimal number corresponding to the selected option:
0 Disables reporting of modulation connection (+MCR: and +MRR: are not
transmitted). (Default.)
1 Enables reporting of modulation connection (+MCR: and +MRR: are transmitted
with tx rate, rx rate).
2 Enables reporting of modulation connection (+MCR: and +MRR: are transmitted
with rx rate only).
Reporting Current or Selected Values:
Command: +MR?
Response: +MR: n
Example: +MR: 0 for default setting
Reporting Supported Range of Parameter Values
Command: +MR=?
Response: +MR: (n range)
Example: +MR: (0-2)
+MCR: xxxx
Report Syntax
Response: +MCR: xxxx
B103 Bell 103
B212 Bell 212
V21 V.21
V22 V.22
V22B V.22bis