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← Revision 14 as of 2026-02-21 17:41:03 ⇥
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| * http://www.etsi.org/deliver/etsi_gts/07/0707/05.00.00_60/gsmts_0707v050000p.pdf (GSM 07.07 Version 5.0.0) * http://www.etsi.org/deliver/etsi_ts/127000_127099/127005/04.01.00_60/ts_127005v040100p.pdf (3GPP TS 27.005 Version 4.1.0 Release 4) |
* [[ http://www.etsi.org/deliver/etsi_gts/07/0707/05.00.00_60/gsmts_0707v050000p.pdf (GSM 07.07 Version 5.0.0) | GSM 07.07 Version 5.0.0 ]] * [[ http://www.etsi.org/deliver/etsi_ts/127000_127099/127005/04.01.00_60/ts_127005v040100p.pdf (3GPP TS 27.005 Version 4.1.0 Release 4) | 3GPP TS 27.005 Version 4.1.0 Release 4 ]] |
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| || AT+CLAC || List of supported AT commands || || AT+CSQ || Signal strength || || AT+COPS? || Current network operator || |
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| * picocom -b 9600 /dev/ttyUSB0 * atz * ati * at+cmgf=1 * at+cmgs="960000000"<enter> * testSMS<ctrl+z> |
{{{#!highlight sh picocom -b 9600 /dev/ttyUSB0 atz ati at+cmgf=1 at+cmgs="960000000"<enter> testSMS<ctrl+z> }}} |
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| == Set GSM number SIM card == * at+cpbs="ON" * at+cpbw=1,"911234567",129,"GSM number" * at+cnum |
== Set GSM number in SIM card == {{{#!highlight sh at+cpbs="ON" at+cpbw=1,"911234567",129,"GSM number" at+cnum #check number }}} == Set SMS message center == {{{#!highlight sh at+csca="+351911616161",145 #Vodafone Portugal at+csca="+351962100000",145 #TMN at+csca? # check SMS message center }}} == AT+CSQ signal strength == || Value || RSSI dBm || Condition || ||2 ||-109 ||Marginal || ||3 ||-107 ||Marginal || ||4 ||-105 ||Marginal || ||5 ||-103 ||Marginal || ||6 ||-101 ||Marginal || ||7 ||-99 ||Marginal || ||8 ||-97 ||Marginal || ||9 ||-95 ||Marginal || ||10 ||-93 ||OK || ||11 ||-91 ||OK || ||12 ||-89 ||OK || ||13 ||-87 ||OK || ||14 ||-85 ||OK || ||15 ||-83 ||Good || ||16 ||-81 ||Good || ||17 ||-79 ||Good || ||18 ||-77 ||Good || ||19 ||-75 ||Good || ||20 ||-73 ||Excellent || ||21 ||-71 ||Excellent || ||22 ||-69 ||Excellent || ||23 ||-67 ||Excellent || ||24 ||-65 ||Excellent || ||25 ||-63 ||Excellent || ||26 ||-61 ||Excellent || ||27 ||-59 ||Excellent || ||28 ||-57 ||Excellent || ||29 ||-55 ||Excellent || ||30 ||-53 ||Excellent || |
GSM
GSM (Global System for Mobile Communications, originally Group Spécial Mobile), is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second generation (2G) digital cellular networks used by mobile phones.
AT command set for GSM Mobile Equipment
Adapted from
Command |
Purpose |
ATZ |
Sets all parameters to their defaults |
ATI |
Requests manufacturer specific information |
AT+GMI |
Requests manufacturer identification |
AT+GMM |
Requests model identification |
AT+GMR |
Requests revision identification |
AT+GSN |
Requests serial number |
AT+CPIN |
Enter PIN |
AT+CMGF |
Message format to use |
AT+CMGL |
List messages |
AT+CMGD |
Delete message |
AT+CLAC |
List of supported AT commands |
|| AT+CSQ || Signal strength ||
AT+COPS? |
Current network operator |
SMS PDU Encode Decode
http://twit88.com/home/utility/sms-pdu-encode-decode
Send SMS text mode
Set GSM number in SIM card
Set SMS message center
AT+CSQ signal strength
Value |
RSSI dBm |
Condition |
2 |
-109 |
Marginal |
3 |
-107 |
Marginal |
4 |
-105 |
Marginal |
5 |
-103 |
Marginal |
6 |
-101 |
Marginal |
7 |
-99 |
Marginal |
8 |
-97 |
Marginal |
9 |
-95 |
Marginal |
10 |
-93 |
OK |
11 |
-91 |
OK |
12 |
-89 |
OK |
13 |
-87 |
OK |
14 |
-85 |
OK |
15 |
-83 |
Good |
16 |
-81 |
Good |
17 |
-79 |
Good |
18 |
-77 |
Good |
19 |
-75 |
Good |
20 |
-73 |
Excellent |
21 |
-71 |
Excellent |
22 |
-69 |
Excellent |
23 |
-67 |
Excellent |
24 |
-65 |
Excellent |
25 |
-63 |
Excellent |
26 |
-61 |
Excellent |
27 |
-59 |
Excellent |
28 |
-57 |
Excellent |
29 |
-55 |
Excellent |
30 |
-53 |
Excellent |