MC55_ATC_V04.00 Page 62 of 475 3/17/06
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3.2 AT+CIND Indicator control
The AT+CIND command controls the presentation of Indicator Event Reports related to various functions such
as battery charge level, signal quality, service availability, sound generation, indication of unread short mes-
sages, full SMS storage, call in progress or roaming activities.
Use of AT+CIND has become outdated. Rather we recommend the more powerful AT^SIND command which is
easier to use and provides additional indicators. All indicators provided by AT+CIND can be handled with
AT^SIND as well.
AT+CIND supports two ways to get the values related to indicators:
• One approach is to query the current status of each indicator by using the read command AT+CIND?. It
returns the status no matter whether the indicator has been registered with the write command
AT+CIND=[<mode>[,<mode>[,...]]].
• The other way is an event-driven notification based on the "+CIEV" URCs. In this case, the ME will automat-
ically send a message to the application, whenever the value of an indicator changes. The application should
be designed to react adequately when receiving a URC.
The presentation of these URCs depends on two settings:
- The indicators must be registered with the write command AT+CIND=[<mode>[,<mode>[,...]]]. When the
ME is switched on all of them are in registered mode. Any indicator can be excluded if deregistered with
<mode>=0. To register or deregister an indicator the AT+CIND write command requires to type the value
<mode>=1 or 0 exactly at the position where the indicator is located in the list. This is not necessary with
AT^SIND which allows to specify indicators by name. See examples below.
- The presentation of the registered indicators must be enabled with AT+CMER.
Syntax
Parameter Description
Integer type value, which shall be in range of corresponding <indDescr>
Test Command
AT+CIND=?
Response(s)
+CIND: (<indDescr>, list of supported <indValue>s)[, (<indDescr>, list of supported <indValue>s)[,
...]]
OK
Read Command
AT+CIND?
Response(s)
+CIND: <indValue>[, <indValue>[, ...]]
OK
ERROR
+CME ERROR: <err>
Write Command
AT+CIND=<mode>[, <mode>[, ...]]
Response(s)
OK
ERROR
+CME ERROR: <err>
Reference(s) PIN ASC0 ASC1 MUX1 MUX2 MUX3 Charge  Last
GSM 07.07 ! % % % % % ! ! !
<indValue>
(num)
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