Technical data

ManualsBrandsWavecom ManualsComputer equipmentWMO2 GSM 1900

WMO2 G900 / G1800 / G1900

WCOM/GSM/WMO2/WMO2ATDOC Friday 21 May 1999

WAVECOM confidential © 76

4.10.5 Data ciphering mode +CRYPT

This command enables or disables the data ciphering (D.E.S algorithm) of

the PIN and a random value sent periodically in order to insure a more

secure communication.

Application to GSM AT+CRYPT=0 Ciphering off

GSM to Application OK command valid

Application to GSM AT+CRYPT=1 Ciphering on

GSM to Application OK command valid

4.10.6 Key management +EXPKEY

This command is used to enter the key used in the D.E.S algorithm to

cipher the data (PIN ). In the way Application to GSM, an "h" character shall

be added before the value.

Application to GSM AT+EXPKEY? Is a key stored in E2PROM?

GSM to Application +EXPKEY: NO KEY key is absent

Application to GSM AT+EXPKEY=h0111011101110111 new key entered

GSM to Application OK command valid

Application to GSM AT+EXPKEY? Is a key stored in E2PROM?

GSM to Application +EXPKEY: READY key is present

4.10.7 Informations on PLMN +CPLMN

This command returns the status and the number of all PLMNs seen by the

mobile. It also indicates the BCCH frequency number (absolute) of the

strongest cell and its RxLev

Application to GSM AT+CPLMN=?

GSM to application +CPLMN: (2,20810,122,50),

(0,20801,64,53)

as defined as AT+COPS=? in the

GSM TS 07 07

4.10.8 Analog digital converters measurements +ADC

This command allows to get the DC level of ADC A and ADC B (those

voltages are coded on 8 bits from 0.5 V to 4.5 V ). Those values are

updated every 10 seconds.

Application to GSM AT+ADC?

GSM to application +ADC: 5,4

ADC A , ADC B

4.10.9 Mobile Equipment event reporting +CMER

This command enabled or disables sending of unsolicited result codes in

the case of key pressing.

Command Syntax: AT+CMER=<mode>,<keyp>,<disp>,<ind>,<bfr>

<keyp> (keypad):

0 No keypad event reporting.

1 Keypad event reporting are routed using unsolicited code:

+CKEV: <key>, <press>

<press>

1: key press

0: key release

<key>: Keyboard map is (5,5)

0 1 2 3 4

5 6 7 8 9

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