Specifications

Chapter 8 – Network Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371B) 100
Notes
• To some extent, the cell monitoring commands AT^SMOND, AT^MONI, AT^MONP and AT^SMONC cover the
same parameters. The receiving level, for example, can be queried with all three commands. Yet the resulting
values may be slightly different, even though obtained over a time period of a few seconds. This is quite
normal and nothing to worry about, as the cell information is permanently updated.
• During a connection, not all of the neighbour cell information can be decoded. The following restrictions apply:
∗ Information is updated only for neighbour cells that have already been visible at connection setup, and
continue to be included in the list of cells.
∗ New neighbour cells added to the list, for example after handover, cannot be displayed until the
connection is released.
Example
at^smond Execute command
^SMOND:262,01,3008,6060,32,100,66,,,0,,,0, Line breaks inserted for readability in print
262,01,3008,DDD1,35,92,80,
262,01,3008,,31,96,83,
262,01,3008,BFBE,35,27,86,
262,01,3008,,32,98,88,
262,01,3008,BB44,32,90,89,
262,01,3008,8307,31,22,93,
2,23,99
8.8 AT^MONI Monitor Idle Mode and Dedicated
Mode
Description: The AT^MONI command supplies information of the serving/dedicated cell. There are two
ways to retrieve the information: once on request by using the execute command or
automatically every <period> seconds by using the write command. To stop the periodic
presentation type “AT” or “at”.
Test Command: AT^MONI=?
Response: ^MONI:(list of supported <period>s)
OK
Exec Command: AT^MONI
Response: See: Section 8.8.1, AT^MONI responses
OK
Write Command: AT^MONI=<period>
Response: See: Section 8.8.1, AT^MONI responses
OK
ERROR
+CME ERROR
Parameter Description:
<period>
Display period in seconds
1...254
Notes:
• The two header lines (see Section 8.8.1, AT^MONI responses) are output after every ten data lines.
• The length of following output lines exceeds 80 characters. Therefore a terminal program may draw a carriage
return on a screen. However, this is not part of the response.
• The parameters LAC and cell are presented as hexadecimal digits, the remaining parameters are composed of
decimal digits.
• If the radio cell changes during a connection, the parameters PWR, RXLev and C1 of the ‘Serving Cell’ part
cannot be updated under certain conditions and therefore, are displayed as “-“ (for conditions see also
AT+CREG). This is because the MS does not update the cell selection and reselection parameters since, in this
mode, they are not relevant for operation. When the connection ends, and the mobile is back to IDLE mode,
correct values will be given.
If the radio cell changes during a connection, it normally takes 1 or 2 seconds to update the parameters cell,
NCC and BCC. Until the information is received from the new base station, the default values will be shown
instead: cell=”0000”, NCC=”-“, BCC=”-“.
• If the BS supports frequency hopping during a connection, the dedicated channel (parameter chann) is not
stable. This mode is indicated by chann = ‘h’.
• To some extent, the cell monitoring command AT^SMONC covers the same parameters. The receiving level, for
example, can be queried with both commands. Yet the resulting values may be slightly different, even though
obtained over a time period of a few seconds. This is quite normal and nothing to worry about, as the cell
information is permanently updated.
• For compatibility with earlier products and to support legacy applications, any input character may be used to
stop the output in certain cases (depending on the settings of AT+IPR and AT+CMUX).