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AT+DR Data Compression Reporting
This command controls whether or not the +DR:<compr> result
code is transmitted from the data adapter to the DTE. The result
code shows the current data compression type. If enabled, the result
code is transmitted at the point after error control negotiation
(handshaking) during which the DCE has determined the data com-
pression technique to be used (if any) and the direction of operation.
Syntax:
AT+DR=<mode> Set reporting mode.
AT+DR?
Query current setting. Response is NONE
<mode>.
AT+DR=?
Show supported values. Response is +DR: (0,1)
Parameters:
<mode>
0
data compression reporting disabled
1
data compression reporting enabled
<compr>
NONE
data compression not in use
V42B
V.42bis in use in both directions
V42B RD
V.42bis in use in receive direction only
V42B TD
V.42bis in use in transmit direction only
MNP5 MNP5
in
use
AT+ILRR DTE-DCE Local Rate Reporting
This command controls whether or not the +ILRR:<rate> informa-
tion text is transmitted from to the DTE. If enabled, the result code
is transmitted after any modulation, error control or data compres-
sion reports are transmitted, and before any final result code (e.g.
CONNECT) is transmitted. The <rate> is applied after the final result
code is transmitted.
Syntax:
AT+ILRR=[<mode>] Set reporting mode.