SIM Applications

Hi all,

I am looking into developing sim apps. I would like to know the answers to these questions:

1) Can sim apps access a phone's main memory to get to the inbox and phonebook?

2) Can sim apps initiate and terminate calls, and initiate beeps? Say, can you have an app such that, when the user selects an item on a menu, it requests a pin, and then if the pin is correct, it requests the user to input two numbers, where one number is length of call and second number is the number that the user wants to dial and once it gets these inputs, it initiates the call, and a timer that keeps track of the call and initiates a beep when the user

gets close to the time limit, and finally terminates the call when the time limit is exceeded.

Ok, I realize I'm asking too many questions but someone please answer the following if you can :)

3)Can sim apps initiate service calls? Can you partition the phonebook/ and or inbox in the sim such that with different PINs, you can view different phonebook/inbox entries ?

Thanks so much!

[1077 byte] By [one_upa] at [2007-11-27 6:54:38]
# 1

Hi one_up,

1) No, SIM apps can only access SMS & phonebook data stored on the SIM

2) SIM apps can initiate a call (SETUP CALL command), but cannot terminate a call. Finally, SIM apps can initiate beeps (PLAY TONE command)

3) What do you mean by service calls ? you can initiate both SS calls & USSD calls.

Phonebooks are usually created during card personalization, so i believe you cannot have more than one phonebook for one USIM application. Or you have to manage specific phonebooks for your application and then you can do what you want with a UserPIN.

I Hope this will help you.

fetchya at 2007-7-12 18:29:43 > top of Java-index,Java Mobility Forums,Consumer and Commerce...
# 2
Thanks a lot. So how would you normally terminate a call, besides having the user terminate the call himself? Say, what would happen if you were using prepaid service and your airtime ran out?
one_upa at 2007-7-12 18:29:43 > top of Java-index,Java Mobility Forums,Consumer and Commerce...
# 3
Sorry I do not have any idea on that subject.
fetchya at 2007-7-12 18:29:43 > top of Java-index,Java Mobility Forums,Consumer and Commerce...