Global Behaviour; Sim Insertion, Sim Removal - Wavecom WMO2 Manual

WCOM/GSM/WMO2/WMO2ATDOC

3.3 Global behaviour

3.3.1 SIM Insertion, SIM Removal

SIM card Insertion and Removal procedures are supported. These
are software functions based on the reading of the hardware SIM
presence pin. This pin state (open/closed) is continuously watched.
When the SIM presence pin indicates a presence of "somewhat" in
the SIM connector, the module tries to establish a SIM logical
session. Depending if the "somewhat" is a SIM Card or not, the SIM
logical session will be successfully established or not.
The AT+CPIN? command delivers the following answers:
If the SIM presence pin indicates "nothing", the answer to
AT+CPIN? is "+CME ERROR: 10" (SIM not inserted).
If the SIM presence pin indicates "something" and the
inserted Card is a valid SIM Card, the answer to AT+CPIN?
is "+CPIN: xxx" depending of the SIM PIN state.
If the SIM presence pin indicates "something" and the
inserted Card is not a valid SIM Card, the answer to
AT+CPIN? is "CME ERROR: 10".
These both last status are not immediately available after
powering-up due to the background initialisation. During
this step and before the SIM presence pin indicates
"somewhat", the AT+CPIN? command returns
"+CME ERROR: 515" (Please wait, initialisation in progress).
When the SIM presence pin indicates "nothing" and the previously
inserted SIM Card was removed, an IMSI detach procedure is
executed, and all the user data corresponding to this previous SIM
are removed from the memory (Phonebooks, SMS etc.).
The modem can then still emit calls but only in the emergency
mode (only emergency numbers can be dialled).
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WMO2 G900 / G1800 / G1900
Friday 21 May 1999
21