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Data Addendum Host-Based Controller Modem
June 15, 1998 AT Command Set
AT Command Reference (continued)
Version 1.0 Lucent Technologies Inc.
15
&Kn Local Flow Control Selection
&K0: Disable flow control
&K1: Reserved
&K2: Reserved
&K3: Enable RTS/CTS (hardware) flow control (default)
&K4: Enable XON/XOFF flow control
Result Codes:
OK n = 0, 3, 4
ERROR Otherwise
&Mn Asynchronous Communications Mode
&M0: Asynchronous mode (default).
&M1: Reserved
&M2: Reserved
&M3: Reserved
&M4: Reserved
Result Codes:
OK n = 0
ERROR Otherwise
&Pn Pulse Dial Make-to-Break Ratio Selection
This Command is effective only for Japan.
&P0 39/61 make/break ratio, 10PPS
&P1 33/67 make/break ratio, 10PPS (default)
&P2 33/67 make/break ratio, 20PPS
Result Codes:
OK n = 0, 1, 2
ERROR Otherwise
&Qn Asynchronous Communications Mode
&Q0: Asynchronous Mode, buffered. Same as \N0.
&Q5: Error Control Mode, buffered (default). Same as \N3.
&Q6: Asynchronous Mode, buffered. Same as \N0.
&Q8: MNP error control mode. If an MNP error control protocol is not established, the modem will
fallback according to the current user setting in S36.
&Q9: V.42 or MNP error control mode. If neither error control protocol is established, the modem will
fallback according to the current user setting in S36.
Result Codes:
OK n = 0, 5, 6, 8, 9
ERROR Otherwise