Siemens AC75 Appendix, Restricted access to SIM data after SIM PIN authentication, AT+CPBR=50,50

AC75 AT Command Set

23. Appendix

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23.Appendix

23.1Restricted access to SIM data after SIM PIN authentication

Users should be aware that when using a phonebook, SMS or Remote SAT command quickly after SIM PIN authentication the SIM data may not yet be accessible, resulting in a short delay before the requested AT com- mand response is returned. This delay is due to the initial process of loading SIM data once after SIM PIN authen- tication. The duration of loading SIM data is dependent on the SIM card used and may take a couple of seconds.

The "^SSIM READY" URC enabled with AT^SSET can be used to notify the user when the ME has finished read- ing the SIM card and SIM data are accessible after SIM PIN authentication. Of course, all phonebook and SMS commands may be issued before the URC is delivered. In this case the AT command response (for example the complete phonebook) will appear after the delay mentioned above, but before the "^SSIM READY" URC is dis- played. See example below.

After the "+CREG: 1" (or "+CREG: 5") URC and before the "^SSIM READY" URC it is not sure that outgoing and incoming calls can be made and short message functions executed. Emergency calls are possible. Outgoing and incoming calls are always possible AFTER having received the "+CREG: 1" (or "+CREG: 5") and "^SSIM READY" URCs. See also Section 8.4, Network registration.

Example:

AT^SSET=1	Activate the "^SSIM READY" URC.
OK	Store the presentation mode of the "^SSIM READY"
AT&W
	URC to the user profile.
OK	Restart the ME.
AT+CFUN=1,1
OK	The ME was restarted.
^SYSSTART
AT+CPIN	Enter the SIM PIN.
OK	Write a new phonebook record.
AT+CPBW=50,"+4030123456789",145,"Paul"
OK	The URC now confirms that the ME has finished
^SSIM READY
	reading data from the SIM.
AT+CPBR=50,50	Read the phonebook entered before.
+CPBR: 50,"+4030123456789",145,"Paul"	The phonebook entry was properly saved.

AC75_ATC_V01.002	Page 535 of 569	10/30/06
Confidential / Released