Specifications

Chapter 20 – Unsolicited AT Result Codes
Multi-Tech Systems, Inc. CDMA AT Commands Reference Guide (PN S000294K) 158
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 another +COPS 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: Unsolicited +COPS result confirms Automatic mode is requested.
+COPS:2,0
Note: Unsolicited +COPS 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
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.