AT Commands
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AT#CID Caller ID
The #CID command allows the user can set up the modem to display the number of all inbound
calls and selectively answer or not answer the call depending on whether the caller is known.
The modem can also be programmed to play a unique ‘tune’ if the caller is known.
When enabled a message will be inserted between the 1st and 2nd RING responses from the
modem.
The message will be in the form:
DATE = mmdd where mm is the month number (01 to 12) and dd is the
day number (01-31)
TIME = hhmm where hh is the hour number (00 to 23) and mm is the
minute number (00-59)
NMBR = nnn...nnn where nnn...nnn is the calling number. If the number is
private the number is reported as ‘P’ if the network was
unable to supply the number the number is reported as
‘O’
NAME = ttt...ttt where ttt...ttt is the name of the caller, if supplied by the
network or if saved in the security database.
This format is compatible with standard Rockwell
modem responses.
If the extended response option is selected (AT#CID3)
the following messages are also available:
REASON NO NAME=<message>where message is ‘Out Of Area’ or ‘Private’ is displayed
if the network does not provide a name
QUAL = Long Distance is displayed if the call is long distance
REDIRECT = <message> where message can be ‘Call Forward’ or ‘Call Forward:
First Number Busy’ or ‘Call Forward: First Number
Didn’t Answer’ if the call has been re-directed from
another number.
LOOKUP NAME = ttt..ttt where ttt...ttt is the name looked up by the modem in its
security database.
CALLBACK NMBR = nnn nnn where nnn...nnn is the phone number to use to ring the
caller back (which may be different from the number he
dialed in on)
The modem also supports the following commands:
AT#CID? Which returns the current setting of the #CID command
AT#CID=? Which returns the available settings of the #CID
command (0,1,2,3)