Chapter 15 – GPRS Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 166
Description: The execution command returns a list of PDP addresses for the specified context identifiers.
The test command returns a list of defined <cid>s.
Values: <cid> A numeric parameter which specifies a particular PDP context definition. If no <cid> is
specified, the addresses for all defined contexts are returned.
<PDP_address> A string that identifies the modem in the address space applicable to the PDP. The
address may be static or dynamic. For a static address, it will be the one set by the
+CGDCONT command when the context was defined. For a dynamic address it will be the
one assigned during the last PDP context activation that used the context definition
referred to by <cid>. <PDP_address> is omitted if none is available.
Syntax: Command Syntax: AT+CGPADDR
Command Possible response(s)
AT+CGPADDR=[<cid> [,<cid> [,…]]] +CGPADDR: <cid>,<PDP_addr>
[<CR><LF>+CGPADDR: <cid>,<PDP_addr>
[...]]
OK
AT+CGPADDR=? +CGPADDR: (list of defined <cid>s)
OK
Example: In this example, 1 <cid> is defined:
AT+CGPADDR=1
+CGPADDR=1,"107.210.5.4"
OK
AT+CGPADDR=?
+CGAPDDR= (1)
OK
AT+CGPADDR
+CGPADDR: 1,
Description: This command enables a more detailed ring indication, in case of incoming call (voice or data). Instead
of the string “RING”, an extended string is used to indicate which type of call is ringing (e.g. +CRING:
VOICE).
These extended indications are:
+CRING: ASYNC for asynchronous transparent
+CRING: REL ASYNC for asynchronous non-transparent
+CRING: VOICE for normal speech.
+CRING: GPRS GPRS network request for PDP context activation
If the modem is unable to announce to the DTE the network's request (for example it is in V.25ter online
data state) the modem reject the request. No corresponding unsolicited result code is issued when the
modem returns to a command state.
Values: No parameters
Syntax: Command Syntax: AT+CRC
Command Possible responses
AT+CRC=0
Note: Extended reports disabled OK
Note: Command valid
AT+CRC=1
Note: Extended reports enabled OK
Note: Command valid
AT+CRC? +CRC: 1
OK
AT+CRC=? +CRC: (0,1)
OK