Specifications

ISU AT Command Reference Phase III AT Commands
Iridium Proprietary Version 2.45
20 June 2011 51
7.2.1 Direct Dial From Phonebook (Revised)
The ISU and SIM contain phonebooks which have a phone number and an alphanumeric field for each
phonebook entry location. The use of V.25ter dialing command ensures that direct dialing from phone
memory and SIM phonebook is possible through ordinary communications software which just gives the
phone number field to be filled and then use the D command to originate the call. Available memories may
be queried with Select Phonebook Storage test command +CPBS=?, and location range for example with
Read Phonebook Entries test command +CPBR=?.
Execute commands:
D><str>[;]
Originate call to phone number which corresponding alphanumeric field is <str> (if possible, all available
memories should be searched for the correct entry). <str> is of string type value and should enclosed by ““
(e.g., “John”).
D> mem<n>[;]
Originate call to phone number in memory mem entry location <n> (available memories may be queried
with Select Phonebook Storage test command +CPBS=?).
mem can be one of the following:
FD SIM fixed dialing phonebook
LD Last ten calls dialed phonebook
ME Phone memory
MT combined phone and SIM phonebook locations
SM SIM phonebook
D><n>[;]
Originate call to phone number in entry location <n> (the command Select Phonebook Memory Storage
+CPBS setting determines which phonebook storage is used).
7.3 Hn - Hangup (Revised)
Control the hook switch. This command is used to clear a data call connection. It is also used to clear a
voice call connection when the ISU has originated the voice call with the ATD dial command or terminated
the voice call with the
ATA or ATS0=n answer command.
0 Place the ISU on hook.
7.4 S0=n - Auto-Answer (Revised)
Auto-answer. This causes the ISU to auto-answer the incoming data or voice call.
0 Disable auto-answer.
n>0 Enable auto-answer after n rings