Chapter 21 – Unsolicited AT Result Codes
Multi-Tech Systems, Inc. CDMA Wireless AT Commands (PN S000294J)
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Mode Preference +COPS
Description:
This response indicates that a change in mode preference has taken place. See +COPS, Mode
Preferences, in Chapter 5 for information about Changing Mode Preference.
Values:
<mode>
(For System Determination 2.0)
0
Automatic.
1
CDMA only.
2
CDMA or AMPS only.
3
Analog only.
<term>
0
Permanent – this mode persists until aCOPS command is issued
1
Power cycle – this mode persists until power cycle is performed
Syntax:
Response syntax: +COPS: <mode>,<term>
Example Result
+COPS:0,0
Note: UnsolCOPS result confirms Automatic mode is requested.
+COPS:2,0
Note: UnsolCOPS result confirms CDMA or AMPS only mode is requested.
Registration & Roaming +CREG
Description:
This response indicates the current state of roaming. See +COPS, Mode Preferences, in Chapter 5 for
information about Changing Mode Preference
Values:
<stat>
0
not registered, MS is not currently searching for a new operator.
1
registered, home network.
2
not registered, MS currently searching for a base station.
4
unknown.
5
registered, roaming
Syntax:
Response syntax: +CREG: <stat>
Example Result
+CREG
:
1
Note: Modem has found the home network and is registered.
Incoming Call +CRING
Description:
This response indicates an incoming call. See +CRC, Cellular Result Codes, in Chapter 9 for information
about enabling this result.
Values:
<type>
VOICE
normal voice call
DATA
all types of data calls
FAX
all types of fax calls
OTAPA
over the air parameter administration call
TEST
markov, loopback, or test call
UNKNOWN unknown/undefined call type
Syntax:
Response syntax: +CRING: <Type>
Example Result
+CRING:VOICE
Note: Incoming normal voice call.