Reference Information
Modem Reference Information
Reference Guide 93
Conexant AT Commands (Advanced Users Only)
Command Function (Conexant)
+VRID=n Report caller ID: 0=use formatted presentation, 1=use unformatted presentation.
-QCPC Use full startup procedures on next connection, then select startup procedure defined by
+PQC.
-QCPS=n 0=do not allow modem to save generated quick-connect profile, 1=allow (default).
&Cn Set RLSD: 0=always on, 1=follow carrier state (default).
&Dn 0=ignore DTR; 1=upon on-to-off transition, enter online command state and issue OK result
code; call remains connected; 2=upon on-to-off transition clear call, discard untransmitted data
accordingto+ETBM.
&En 0=disable line quality monitor, auto-retrain, and auto-rate renegotiation;1=enable line quality
monitor, auto-retrain, and auto-rate renegotiation (default).
&F0 Restore factory configuration.
&Gn Included for compatibility only; no effect (returns OK).
&Kn Set DTE/DCE flow control: 0=disable, 3=enable RTS/CTS DTE/DCE flow control (default),
4=enable XON/XOFF DTE/DCE flow control, 5 and 6 included for compatibility only (no effect,
returns OK).
&Mn Included for compatibility only; no effect (returns result code).
&Pn Set pulse dial (pps) with make/break: 0=10 pps with 39%–61% make/break (default), 1=10 pps
with 33%–67% make/break, 2=20 pps with 39%–61% make/break, 3=20 pps with 33%–67%
make/break.
&Q5 Select asynchronous operation in error correction mode.
&Qn (n=0–3, 6) Select asynchronous operation in normal mode (speed buffering).
&T0 Terminate any test in progress.
&T1 Initiate local analog loopback.
&V Display current configuration and stored profiles.
%TTn PTT testing of signal level: 00–09=DTMF dial 0–9, 0A=DTMF *, 0B=DTMF #, 0C=DTMF A,
0D=DTMF B, 0E=DTMF C, 0F=DTMF D, 10=V.21 Channel 1mark symbol, 11=V.21 Channel
2mark symbol, 12=V.23 Channel 1mark symbol, 13=V.23 Channel 2mark symbol, 14=Bell103
Channel 1mark symbol, 15=Bell103 Channel 2mark symbol, 20=V22Org, 21=V22Ans,
22=Bell212Org, 23=Bell212Ans, 24=V22BisOrg, 25=V22BisAns, 26=V32@4800,
27=V32@7200, 28=V32@9600, 29=V.32Bis@12000, 2A=V32Bis@14400, 30=Silence,
31=2100Hz MISC, 33=1300Hz MISC, 34=1100Hz MISC, 40=Reserved, 41=V27@2400 FAX,
42=V27@4800 FAX, 43=V29@7200 FAX, 44=V29@9600 FAX, 45=V17@7200LT FAX,
46=V17@7200ST FAX, 47=V17@9600LT FAX, 48=V17@9600ST FAX, 49=V17@12000LT
FAX, 4A=V17@12000ST FAX, 4B=V17@14400LT FAX, 4C=V17@14400ST FAX. 5abc: a=bit
rate (0=2400, D=33600), b=V.34 symbol rate (0=2400, 5=3429), c=pre-emphasis filter (0 to A).
\N0 Select normal speed buffered mode.
\N1 Select normal speed buffered mode.
\N2 Select reliable (error-correction) mode.
\N3 Select auto reliable mode.
\N4 Force LAPM mode.
\N5 Force MNP mode.
+MCR Report carrier.
+MMR Report transmit and receive rates.
+MR=0 Disable reporting of modulation connection.
+MR=1 Enable reporting of modulation connection (+MCR: and +MRR: are transmitted) (default).
+MR=2 Enable reporting of modulation connection (+MCR: and Receive Rate Only: are transmitted).
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