Chapter 3 - Status Control Commands; At+Cmer Mobile Equipment Event Reporting - Multi-Tech MultiModem EDGE Reference Manual

Chapter 3 – Status Control
The AT Commands described in this chapter allow the external application to obtain various status information from
the Multi-Tech wireless modem.

3.1 AT+CMER Mobile Equipment Event Reporting

This command controls details of the "+CIEV" URC presentation related to AT^SIND and
Description:
AT+CIND. If registered via these commands the URCs are sent whenever a value of the related
indicator changes.
In addition, AT+CMER controls "^SLCC" URCs related to AT^SLCC. For details refer to Call Status
Information, AT^SLCC and AT^SCFG, parameter <sucs>.
The read command returns the URC presentation mode <mode> and among others, the indicator
event reporting status <ind>.
The write command enables and disables the presentation of "+CIEV: <indDescr>, <indValue>1[,
<ind-Value>2]" URCs. <indDescr> refers to the name of a "+CIEV" indicator and <indValue> is the
new value of this indicator. After AT+CMER has been switched on, URCs for all registered
indicators will be issued. See examples provided in Section 3.2, AT+CIND and Section 3.3,
AT^SIND.
Test Command Syntax:
Test Response:
Read Command Syntax:
Read Response:
Write Command Syntax:
Read Response:
Unsolicited Result Code:
Parameter Description:
<mode>
0 Discard "+CIEV" and "^SLCC" URCs. Default.
1 Discard "+CIEV" and "^SLCC" URCs when TA-TE link is reserved (e.g., in online data mode). Otherwise,
they are forwarded directly to the TE.
2 Buffer "+CIEV" and "^SLCC" URCs in the TA while TA-TE link is reserved; e.g., in online data mode and
flush them to the TE afterwards. Otherwise, they are forwarded directly to the TE.
3 Forward "+CIEV" and "^SLCC" URCs directly to the TE. If the Multi-Tech wireless modem is in online data
mode, URCs are signaled via sending BREAK (100ms) and stored in a buffer. Once it is back in
command mode (e.g., after +++ was entered), all URCs stored in the buffer will be output.
<keyp>
0 Keypad event reporting is not supported by the Multi-Tech wireless modem. Default.
<disp>
0 Display event reporting is not supported by the Multi-Tech wireless modem. Default.
<ind>
0 Disable indicator event reporting. Default.
2 Enable indicator event reporting.
<bfr>
0 TA buffer of URCs defined within this command is cleared when <mode> 1..3 is entered. Default.
<indDescr>
Name of indicator; for a list of all supported indicators please refer to AT+CIND and AT^SIND.
<indValue>
Value of indicator; for a list of all values for the supported indicators please refer to AT+CIND and AT^SIND.
Note:
It is recommended that priority be given to AT+CMER=<mode> 2 or 3. Otherwise, if <mode> equals 1, URCs will be
discarded in case of long running AT commands or an active data connection.
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371G)
Commands
AT+CMER=?
+CMER: (list of supported<mode>s), (list of supported <keyp>s), (list of supported
<disp>s), (list of supported <ind>s), (list of supported <bfr>s)
OK
AT+CMER?
+CMER: <mode>, <keyp>, <disp>, <ind>, <bfr>
OK
AT+CMER=[<mode>[, <keyp>[, <disp>[, <ind>[, <bfr>]]]]]
OK
ERROR
+CME ERROR
+CIEV: <indDescr>, <indValue>1[, <indValue>2][, <indValue>[,...]]
A value of an indicator has changed. For more details see AT^SIND.
Chapter 3 – Status Control Commands
42