Specifications

Chapter 3 – Status Control Commands
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 36
Chapter 3. Status Control
Commands
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
Description: This command controls details of the “+CIEV” URC presentation related to AT^SIND and
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: AT+CMER=?
Test Response: +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
Read Command Syntax: AT+CMER?
Read Response: +CMER: <mode>, <keyp>, <disp>, <ind>, <bfr>
OK
Write Command Syntax: AT+CMER=[<mode>[, <keyp>[, <disp>[, <ind>[, <bfr>]]]]]
Read Response: OK
ERROR
+CME ERROR
Unsolicited Result Code:
+CIEV: <indDescr>, <indValue>1[, <indValue>2]
A value of an indicator has changed.
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:
If the ME operates on different instances (MUX channels 1, 2, 3 or ASC0) avoid different settings for routing and
indicating SMS. For example, if messages shall be routed directly to one instance of the TE (set with AT+CNMI,
AT^SSDA), it is not possible to activate the presentation of URCs with AT+CMER or AT+CNMI on another instance.
Any attempt to activate settings that conflict with existing settings on another interface, will result in CME ERROR, or
accordingly CMS ERROR.