Specifications

Chapter 3 – Status Control Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 52
URC 4
Format of the “eons” indicator
+CIEV: <indDescr>, <indValue>, <eonsOperator>, <servProvider>
One URC is issued for each new LAI (Location Area Information) broadcast by the network.
URC 5
Format of the “nitz” indicator:
+CIEV: <indDescr>, <nitzUT>, <nitzTZ>, <nitzDST>
URC 6
Format of the "lsta" indicator:
In case <indValue> equals "0".
+CIEV: <indDescr>, <indValue>, <lstaEdv>, <lstaRssi>
The URC is issued for every radio link error. It provides the error downcounter value corresponding to number
of consecutive errors on downlink and the RSSI of the serving cell.
Error downcounter value of 10 corresponds to first error occurred on downlink, 0 corresponds to last before
cell loss.
URC 7
In case <indValue> equals "1".
+CIEV: <indDescr>, <indValue>, <lstaNo>, <lstaMax>, <lstaMin>, <lstaMean>, <lstaVar>
After the error downcounter reaches the value 0 the URC provides some statistic parameters of signal
strength distribution across the band.
Parameters:
<indDescr>
String values and their <indValue> ranges.
All indicators supported by AT+CIND are accessible with this command, too. A detailed description of
these indicators can be found there. The following indicators are accessible via AT^SIND only:
audio Activity of the built-in audio unit.
0 Audio unit not active.
1 Audio unit is active, for example:
MO voice call: Indicator is output with value 1 when dialing starts.
MT voice call: Indicator is output with value 1 when call is ringing.
vmwait1 Voice Message Waiting Indication for line 1
0 Notifies that no new voice message is available, and is provided by the service
center to clear the voice message indication after the subscriber has retrieved all
voice messages.
1 Notifies the subscriber that the mailbox contains one or several messages.
“vmwait1” and “vmwait2” indicate the receipt of a special short message with a Voice
Message Waiting Indicator. The service must be provisioned by the operator.
The numbers 1 or 2 in “vmwait1” and “vmwait2” are related to the two lines of the Alternate
Line Service (ALS), also defined in CPHS Phase 2 standard. For further details refer to the
AT^SALS command.
The presentation mode of the indicator varies with the operator: If more than one message
are waiting, some operators only indicate the first one, others deliver the indicator each time
a new voice message is put into the mailbox.
After the subscriber has retrieved all voice messages the service center automatically sends
another message indication which provides the value 0.
Some operators may also send the number of waiting voice messages along with the
indication. In this case, this number will be displayed by the Multi-Tech wireless modem as
part of the URC. For example, “+CIEV: vmwait1,1,5” notifies that five new voice messages
are waiting. However, it should be noted that neither the read command AT^SIND? nor the
write command AT^SIND=<mode>,2 display the number of waiting messages.
The “vmwait” indicators do not apply if a network provider signals new voice mail(s) via
standard SMS. In this case the indicator “message” will be displayed (see AT+CIND).
vmwait2 Voice Message Waiting Indication for line 2
0 See description of “vmwait1”.
1 See description of “vmwait1”.
ciphcall Ciphering Status Change Indication
0 Current call or SMS is not ciphered.
1
Current call or SMS is ciphered.
As stated in GSM specifications 02.07 and 02.09 the ciphering indicator feature allows the
Multi-Tech wireless modem to detect that ciphering is not switched on and to indicate this to
the user.