ZyXEL Communications ACCESSING INTERNET & INTRANET omni series - Manual (Page 66)

54 V.110 and Synchronous Mode Communications
Command Messages
RST
Changes to asynchronous AT command
mode.
Indicator Messages
CNX
Call connect.
INC Incoming call.
VAL Valid command.
INV Invalid command.
CFLxx Call Failure.
NT Answer tone is not detected.
AB Abort call.
ET Engaged tone.
NS Number is not stored.
RT Ring tone.
DTR Drop-Dialing Operation
The omni will automatically dial the phone number stored in the
NVRAM when it detects an off-to-on transition of the DTR line.
Before you enable the DTR drop action, a phone number must be
stored and saved to memory along with an indication of which
number to dial on DTR drop. First use AT&Zn=s (n=0-39, s=phone
number) to store the phone number into NVRAM. Then, use AT*Dn
(n=0-39) to choose which of the in-memory phone numbers should
be dialed. Finally issue an AT&D1 to enable DTR drop dialing
operation.
O Note: Phone numbers must include a prefix for specific call types, e.g. I
for ISDN.
An example of DTR drop dialing is given below. The destination
phone number is 5551234.
1. Issue the command
AT&Z0=I5551234
to save phone number to NVRAM.