Multitech MTCMR-H User's Guide download pdf (Page 41)

Chapter 2 – Modem-Specific Commands

High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A) 41

SIM Commands

These commands are used to communicate with an installed (U)SIM.

!AUTH Run GSM Algorithm on SIM

Syntax: Execution: AT!AUTH=<randNumber>

Response: AT!AUTH: <SRES>, <key>

or ERROR (no SIM or “PCSDISABLE” customization bit 1 is set)

Purpose: Return the SIM’s response and a 64-bit ciphering key:

Note: This command can only be used when the second bit (Bit 1) of the “PCSCDISABLE”

customization bitmap is not set. (See !CUSTOM in the Part 2—Extended AT Commands

in the manual.)

Description: Authenticate the SIM using a random number.

Parameters: <randNumber>:

16 bytes (32 hexadecimal digits) random number), without leading ‘0x’.

Example: 123A567B9012C4567D90123E56789012

<SRES> (SIM response):

4 bytes (8 hexadecimal digits), without leading ‘0x’.

Example: 500e2879

<key> (Ciphering key):

8 bytes (16 hexadecimal digits), without leading ‘0x’.

Example: ec793ac5662e7000

!ICCID Return (U)SIM Card’s ICCID

Syntax: Query: AT!ICCID?

Response: !ICCID: <iccid>

Purpose: Display the ICCID.

Description: Return a (U)SIM’s ICCID (Integrated Circuit Card ID).

Parameters: <iccid> (ICCID of the (U)SIM currently being tested):

20 digit decimal number—This number is often printed on the (U)SIM card.

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Multitech MTCMR-H User's Guide Page 41