98-08901C68-O 37
Introduction to AT Commands
\S This command displays the status of all commands and S-registers. 188
+CEER This command returns an extended error report containing one or more lines of
information text <report>, determined by the ME manufacturer, providing reasons for
errors.
200
+CGM This command requests manufacturer identification. 39
+CGMM This command requests the model identification. 40
+CGMR This command requests the revision identification. 41
+CGSN This command requests the product serial number identification. The serial number
is displayed with the prefix "IMEI".
42
+CKPD This command enables the emulated pressing of keys, or virtual keycodes, as if
entered from the g20 keypad or from a remote handset.
203
+CMEE This command enables/disables the use of result code +CME ERROR: <err> as an
indication of an error relating to the functionality of the g20.
197
+CMER This command enables an external accessory to receive key press information from
the g20’s internal keypad.
207
+CPIN This command is only relevant for phones that use SIM cards. It unlocks the SIM
card when the proper SIM PIN is provided and unblocks the SIM card when the
proper SIM PUK is provided.
172
+CRC This command controls whether or not to present the extended format of an
incoming call indication.
59
+CSQ 136
+GCAP This command requests the overall capabilities of the g20. 147
+GMI This command requests manufacturer identification. 39
+GMM This command requests the model identification. 40
+GMR This command requests the revision identification. 41
A This command answers an incoming VOICE/DATA/FAX call. 59
B Selects the communications standard used by the data adaptor. This command is
used for backward compatibility only.
226
D This command places a VOICE/DATA/FAX call on the current network. 52
E This command defines whether the g20 echoes the characters received from the
accessory, (whether the input characters are echoed to output).
184
Table 5. Core AT Commands (Continued)
Command Description Page
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