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Chapter 6 – +C Prefix Commands
CDMA 1xEV-D0 AT Commands Reference Guide (Document S000482B) 34
+CQD= Command State Inactivity Timer
Syntax: AT+CQD=<n> (Sets the Command State Inactivity Timer)
AT+ CQD? (Reads the Command State Inactivity Timer)
Description: This timer determines when (or if) the modem will release a call if there is no activity on the
connection between the modem and the IWF, for the specified period. The entry
represents a multiple of five seconds. That is, each unit represents 5 seconds.
Value Meaning
0 Disables the timer
1–255 Indicates timer value in steps of five seconds.
The default value is 10 – meaning a timer setting of 50 seconds.
See also +CTA (Packet mode Inactivity Timer).
Note: This command is included for compatibility.
+CRC= Cellular Result Codes
Syntax: AT+CRC=<n> (Enables or disables cellular result codes)
AT+CRC? (Reads the cellular result code value)
Description: Enables or disables cellular result codes for call progress.
Value Meaning
0 Disables cellular result codes. Default.
1 Enables cellular result codes
The extended cellular result codes are in Extended Cellular Result Codes Table.
Extended cellular call progress codes are in the Extended Cellular Call Progress Codes
Table later in this manual.
+CRM= Local (Rm) Interface Protocol
Syntax: AT+CRM=<n> (Sets the Local Interface Protocol)
AT+CRM? (Reports the protocol for local (DCE - DTE) interface.
Description: Reports (or sets) the protocol for the local (DCE - DTE) interface. This value is set
automatically by the modem, based on the data received.
Value Meaning
0 Asynchronous Data or Fax
1 Packet data service, Relay Layer interface
2 Packet data service, Network Model (Default)
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