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SIM900 AT Command Manual

SIM900_AT Command Manual_V1.03 148 12/24/2010

Old password and length should be 8.

<newpwd> string type(string should be included in quotation marks).

New password and length should be 8.

Reference Note

Default value of <oldpwd> is "12345678".

If module is locked to a specific SIM card through AT+CLCK and

password lost or SIM state is PH-SIM PUK, user can use the super

password to unlock it.

It is not supported temporarily.

6.2.41 AT+EXUNSOL Enable or Disable Proprietary Unsolicited Indications

AT+EXUNSOL Enable or Disable Proprietary Unsolicited Indications

Response

+EXUNSOL: (list of supported <exunsol>s)

Test Command

AT+EXUNSOL

Parameters

See Write Command

Response

If error is related to ME functionality:

+CME ERROR: <err>

Write Command

AT+EXUNSOL=

<exunsol>,<mod

Parameters

<exunsol> string type(string should be included in quotation marks).

values are currently reserved by the present document

"SQ" Signal Quality Report

Displays signal strength and channel bit error rate (similar

To AT+CSQ) in form +CSQN: <rssi>,<ber>when values change.

<mode>

0 disable

1 enable

2 query

Reference

Note

6.2.42 AT+CGMSCLASS Change GPRS Multislot Class

AT+CGMSCLASS Change GPRS Multislot Class

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Elec Freaks Bluetooth Modem Especificaciones Pagina 148