AST Premmia PS Series, User Manual

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Premmia PS Series
77
Modem AT Commands{xe "Modem
commands"}{xe "AT commands"}
All AT commands must begin with AT and end with you pressing Enter . The
commands can be in either lower- or upper-case but not mixed.
Basic AT Commands
A/ Re-execute command I2 Compute and compare checksum
A Answer a call L0 Sets lowest speaker volume
B0 Select v.22 (CCITT) mode at 1200bps L1 Sets low speaker volume†
B1 Select Bell 212A mode at 1200bps L2 Sets medium speaker volume
D n Dial n when n is 0 – 9, # or * L3 Sets high speaker volume
DL Last number redial M0 Turns speaker off
DP Pulse dialing M1 Turns speaker on during handshaking,
off afterwards†
DT Touch tone dialing† M2 Turns speaker on during handshaking
and receiving carrier, off afterwards
DW Wait for a second dial tone M3 Turn speaker off during handshaking
and receiving carrier, on afterwards
D, pause N0 Turn automode detection off
D@ Wait for 5 seconds of silence N1 Turn automode detection on†
D! flash O0 Go on-line
D; Return to Command Mode after dialing O1 Go on-line and initiate training
D$ Bong tone detection (for credit card calls) P Force pulse dialing
DS= n Dial one of four stored telephone numbers
( n = 0 – 3)
Q0 Modem sends responses†
E0 Turn off command echo Q1 Modem does not send responses
El Turn on command echo† S r ? Display the value of register n
H0 Hang up S r = n Set the value of register r to n
H1 Enter command mode T Force tone dialing†
I0 or
I3 Report firmware revision, model and
interface type V0 Numeric responses