Specifications

Chapter 3 – Status Control Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 47
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.
Syntax: Test Command: AT+CMER=?
Responses: +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: AT+CMER?
Responses: +CMER: <mode>, <keyp>, <disp>, <ind>, <bfr>
OK
Write Command: AT+CMER=[<mode>[, <keyp>[, <disp>[, <ind>[, <bfr>]]]]]
Responses: OK
ERROR
+CME ERROR: <err>
Unsolicited Result Code:
+CIEV: <indDescr>, <indValue>
1
[, <indValue>
2
]
A value of an indicator has changed. For more details see AT^SIND.
Parameters:
<mode>
0 Discard “+CIEV” and “^SLCC” URCs. Default. (Factory default value, will be
restored to 'x' with AT&F).
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. (Factory default value, will be restored to 'x' with AT&F).
<disp>
0 Display event reporting is not supported by the Multi-Tech wireless modem.
Default. (Factory default value, will be restored to 'x' with AT&F).
<ind>
0 Disable indicator event reporting. Default. Default. (Factory default value, will
be restored to 'x' with AT&F).
2 Enable indicator event reporting.
<bfr>
0 TA buffer of URCs defined within this command is cleared when <mode> 1..3
is entered. Default. Default. (Factory default value, will be restored to 'x' with
AT&F).