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AT Command Reference
80-99208-1 Rev. D 6-21
data, Markov, or Loopback call is initiated. All other valid
dial numbers, except dial numbers 1-99, initiate an
asynchronous data call and return the result code of the
Gateway IWF modem.
Dial numbers 1-99 correspond to phone book entries and are
translated into dial numbers stored in the specified location.
If the specified phone book location is unused, no call is
attempted and
NO DIALTONE is returned. If the phone book
entry exists, a call is attempted using the dial number stored.
Valid phone book entries include the Dial String Values listed
below.
If
ATD is entered by itself, then the modem attempts to call the
previously called number (from the call history) if one exists.
Dial string modifiers and unrecognized characters included
in this dial string are ignored as stated above.
Dial String Values
Results Returned
#777 Originate a packet data call.
#627568 Originate a Markov call.
#56672225 Originate a Loopback call.
Result Codes Description
CONNECT Connection is successfully established (call is
active on traffic channel).
NO CARRIER Service not activated — call cannot be
completed, service unavailable, or user has
released dial command.
NO DIALTONE Service not available — modem is not
configured for service. Also returned if a
mobile-terminated call (which sends
unsolicited result code RING to the DTE) is
answered with a D<dial string> command.