
Chapter 15 – Result Codes
CDMA 1xEV-D0 AT Commands Reference Guide (Document S000482B) 59
Extended Cellular Call Progress Result Codes
The following extended result codes may be enabled when the +CRC=1 setting is used. Support for these rests
with the IWF. These are primarily call progress indications. Note that if Verbose is off (V0), these codes are
suppressed; there are no numeric equivalents for call progress codes.
Code Verbose Meaning
+CERROR: INIT FAILED
<failed command>
Initialization String failed during transport layer initialization. If
+CRC=0 then result code 4 ERROR is returned
+CPROG: ANSWER Indicated remote DCE has answered
+CPROG: BONGTONE Billing tone was detected
+CPROG: DIALING<num> Indicates PSTN dialing
+CPROG: DIALTONE Dial tone was detected
+CPROG: QUIET ANSWER Indicates Quiet Answer
+CPROG: RINGING Indicates PSTN ringing
+CPROG: VOICE Voice detected on PSTN connection
* +RING <service mode> Indicates an incoming call to the modem in the service mode
indicated: ASYNC or STU-III (not supported)
* See numbers 11–13 in Table of Extended Cellular Result Codes on previous page
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