Specifications

Chapter 17 – Qualcomm Defined AT Commands for CDMA Operation
Multi-Tech Systems, Inc. CDMA AT Commands Reference Guide (PN S000294K) 127
R-SCH Throttling Selection $QCTRTL
Description: This command is used to enable or disable mobile R-SCH throttling.
Values: <Val>
0: Mobile never throttles R-SCH
1: Mobile can throttle R-SCH as needed.
Note: Command only applies to SO 33 calls. This value is stored in NV. The default is 1. For MSM500, MSM5105,
and MSM5100 ASICs only.
Syntax: Command syntax: AT$QCTRTL=<Val>
Command Possible Responses
AT$QCTRTL?
Note: Display the current setting
$QCTRTL: 1
OK Note: Command is valid
AT$QCTRTL =?
Note: Display the range of values
$QCTRTL: (0-1)
OK Note: Command is valid
AT$QCTRTL =0
Note: Set value to 0
OK
Note: Command is valid
R-SCH IP Selection $QCMIP
Description: This command is used to enable or disable mobile IP.
The default value is carrier-specific.
Values: <Val>
0 Mobile IP disabled, Simple IP only.
1 Mobile IP preferred. In the initial MIP registration, if the network does not support Mobile IP, then the
mobile automatically reverts to Simple IP (force a PPP renegotiation by sending a LCP C-Req).
However, if a Mobile IP session is registered, and then enters a network that does not support Mobile
IP, the mobile will drop the session and inform the upper layers of the failure (for example, by
dropping DCD to a laptop).
2 Mobile IP only. The mobile will make data calls only when Mobile IP is supported in the network.
During a MIP session, if the mobile hands off to a network that does not support MIP, then the mobile
will drop the session and inform the upper layers of the failure (for example, by dropping DCD to a
laptop). This value is stored in NV. The default value is 0.
Note 1: When the AT$QCMIP value is changed to 1 or 2, this modifies the value of AT+CRM to 2. AT+CRM with a
value of 2 enables network model operation. Changing the value to 0 will reset the AT+CRM to its original
value.
Note 2: This change is not supported by DMSS 5105 Release 1.0 Commercial.
Note 3: When the AT$QCMIP value is changed to 1 or 2, this modifies the value of AT$QCMDR to 3.
AT$QCMDR=3 means that the mobile tries Service Option 33 when it is in a cdma2000 network that
advertises P_REV 6 or higher. When AT$QCMIP >0 and an attempt is made to set AT$QCMDR to less than
3, the mobile will return ERROR.
Note 4: When the AT$QCMIP value is set to 1 or 2, this changes the value of AT$QCPKND to 0. This means that
the mobile must see a dial string (such as ATDT#777) on the serial interface before it will originate packet
data calls. When AT$QCMIP >0 and an attempt is made to set AT$QCPKND to 1, the mobile returns
ERROR.
Note 5: This AT command is for test purposes only and should not be changed by the mobile phone user.
Syntax: Command syntax: AT$QCMIP=<Val>
Command Possible Responses
AT$QCMIP?
Note: Display the current setting
$QCMIP: 1
OK Note: Command is valid
AT$QCMIP=?
Note: Display the range of values
$QCMIP: (0-2)
OK Note: Command is valid
AT$QCMIP=0
Note: Set value to 0
OK
Note: Command is valid