Set command

Syntax:

+CGSN[=<snt>]

The set command parameters and their defined values are the following:

<snt>

0 – Respond with <sn> (default)

1 – Respond with +CGSN: <imei>

2 – Respond with +CGSN: <imeisv>

3 – Respond with +CGSN: <svn>

<sn>

Information text determined by the manufacturer. Up to 2048 characters. Electronic Serial Number (ESN) returned if available. IMEI returned if ESN not available.

<imei>

String in decimal format indicating the IMEI. Composed of Type Allocation Code (TAC) (8 digits), Serial Number (SNR) (6 digits), and Check Digit (CD) (1 digit).

<imeisv>

String in decimal format indicating the International Mobile (Station) Equipment Identity, Software Version (IMEISV). The 16 digits of IMEISV are composed of TAC (8 digits), SNR (6 digits), and Software Version Number (SVN) (2 digits).

<svn>

String in decimal format indicating the current SVN which is part of IMEISV.

If the International Mobile (Station) Equipment Identity (IMEI) has not been set to the device with the Production Test Image (PTI) modem firmware and %IMEIWRITE command, the response is ERROR.

Response syntax when <snt>=0 (or omitted):

<sn>

Response syntax for other <snt> values:

+CGSN: <string>

where <string> can be <imei>, <imeisv>, or <svn>.

The following command example reads the serial number:

AT+CGSN
352656100367872
OK

The following command example reads the IMEI:

AT+CGSN=1
+CGSN: "352656100367872"
OK

The following command example tries to read the IMEI when it is not written to the device:

AT+CGSN
ERROR