Zoom 2812 Owner's Manual page 49

! Goes on hook (time specified in S29)
W Waits for dial tone
Comman Function
d
@ Waits for at least 5 seconds of silence
& Waits for credit card dialing tone (bong tone)
, Pauses during dial as specified in register S8 (default: 2
sec.)
; Returns to command mode after dialing (put after dial
string)
^ Turn on calling tone (data only)
E0 Command characters not echoed
E1 Command characters echoed
H0 Forces modem to hang up
H1 Forces modem off-hook
I0 Returns product code (for example: 33600)
I1 Returns ROM checksum
I2 Computes checksum, compares with value in ROM, and
returns OK or ERROR
I3 Returns firmware revision code
I4 Returns modem identifier string
I5 Returns country code
I6 Returns data pump model and revision code
I98 Returns modem features description
I99 Returns modem features in hex bitmap
L1 Low speaker volume
L2 Medium speaker volume
L3 Highest speaker volume
M0 Speaker always off
M1 Speaker on until carrier detected
M2 Speaker always on
M3 Speaker off during dialing, then on until carrier
N0 Disables auto-mode (automatic modulation negotiation);
uses connection speed specified in S37. (Equivalent to
+MS <automode> set to 0.)
N1
Enables auto-mode (Equivalent to +MS <automode> set
to 1.)
O0 Enters data mode
Appendix E: AT Commands 49