Specifications

HE863 family AT commands reference guide
80377ST10083a Rev.4 – 2012-02-01
Reproduction forbidden without written authorization from Telit Communications S.p.A.- All Rights Reserved. Page 41 of 228
D – Dial
Note: V.25ter or GSM Modifier Characters
• “,”, “T”, “P”, “!”, “W” or “@” are ignored
• “;” forces a voice call originated to the given address
• “>” allows direct dialing from phonebook
• “I” invocation restrict CLI presentation
• “i” suppression i.e. allows CLI presentation
• “G” or “g” control the CUG supplementary service information for this call
(s.+CCUG)
ATD><str> [I] [G] [;]
Originate a call to phone number which corresponding alphanumeric field in the
default phonebook is <str>.
ATD>mem<n> [I] [G]
[;]
Originate a call to phone number in memory (one of the phonebooks) “mem”
entry location <n>. ”mem” may be for example “SM”, “FD” or “LD”.
ATD><n> [I] [G] [;]
Originate a call to phone number in entry location <n> of the default phonebook.
ATDL
This command is used to redial the last dialed number.
Reference V25ter.
3.5.2.3.2. Answer - A
A - Answer
ATA
This command instructs the DCE to immediately connect to line and start the
answer sequence as specified for the underlying DCE. Any additional command
that appears after A on the same command line is ignored. The user is informed that
an incoming call is waiting, by the information result code RING or +CRING
displayed on
TE.
Reference V25ter.
3.5.2.3.3. Disconnect - H
H - Disconnect
ATH
Execution command is used to close the current conversation (voice, data or fax).
Note: this command can be issued only in command mode; when a data
conversation is active the device is in on-line mode (commands are not sensed and
characters are sent to the other party), hence escape sequence (see register S2) is
required before issuing this command, otherwise if &D1 option is active, DTR pin
has to be tied Low to return in command mode.
Reference V25ter.
3.5.2.3.4. Guard Tone - &G
&G - Guard Tone
AT&G
Set command has no effect is included only for backward compatibility with
landline modems.