Multitech MultiModem Cell MTCBA-C1 User's Guide Page 90

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Chapter 16 – Data Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 90
Mobile Station IP Address +CMIP
Description: This read-only command is used to display the mobile station’s temporary IP address. The value
displayed is in standard IP address format.
Note: This command returns an IP value only during a data call when a temporary IP address
has been assigned.
Syntax: Command syntax: AT+CMIP
Command Possible Responses
AT+CMIP?
Note: Display the current setting
+CMIP: 198.229.142.90
OK
Note: Command is valid
AT+CMIP?
Note: Display the current setting
+CMIP: 0.0.0.0
OK
Note: When no IP address is assigned.
AT+CMIP ERROR
Note: Command is not valid
R-SCH Selection $QCMIP
Description: This command is used to enable or disable mobile IP.
The default value is carrier-specific.
This command is for test purposes only and should not be issued by the mobile phone user.
Syntax: Command syntax: AT$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
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).
Note: 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.
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