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Chapter 13: Dialing, Answering, & Clearing Calls Using AT Commands
13.2.3 C
LEARING THE
C
ONTENTS OF THE
D
IRECTORY
Issuing the command
AT&N99<CR>
will clear the contents of all directory
locations.
13.2.4 C
LEARING A
S
INGLE
D
IRECTORY
L
OCATION
A single entry within the directory can be erased using the
N
n
?
command,
where
n
represents the directory location. For example, typing
ATN3?
will
delete the contents of directory location 3.
13.2.5 D
IALING A
N
UMBER
S
TORED IN THE
ISDN TA/V’
S
D
IRECTORY
As we have briefly mentioned, one of the facilities of your ISDN TA/V is a
20-location ISDN number directory to which frequently used numbers can
be saved and recalled. The dialing modifier command used to specify a
directory location is
N
n
(where
n
is the directory location). For example:
ATDN2<CR>
will instruct the ISDN TA/V to dial the number stored in its directory location
number 2.
13.3 Clearing a Call
Disconnecting the call can be done in a number of ways. A controlled
disconnection is one where you select the disconnect option from the
menu of the remote computer service (termed as logging off), this causes
the remote modem to disconnect first. Your own ISDN TA/V will sense the
loss of signal, report
NO CARRIER
on both its front-panel LCD and your
computer screen, and then hang up.
Alternatively you can initiate a disconnect by typing the command:
ATH<CR>
on the terminal or computer that is attached to the
CONTROL
port, or by
typing
+++
(interrupt data flow command) followed by
ATH<CR>
on the
computer that is attached to the DTE interface.
Caution
Remember that if you have dialed the call you will normally be billed for
it. Always ensure that your own ISDN TA/V has disconnected properly.
