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SIM toolkit and silently sending and receiving SMSs

 
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pinkfoot



Joined: 07 Apr 2008
Posts: 11
PostPosted: Mon Apr 07, 2008 8:06 pm    Post subject: SIM toolkit and silently sending and receiving SMSs Reply with quote
Hi,

I need to confirm whether a SIM toolkit application can:

a) be downloaded to any > 32KiB standards compliant SIM card via OTA?
b) silently receive Cell Broadcast (CB) messages?
c) silently receive SMSs? If so, what restrictions apply.
d) silently send SMSs to a MSISDN and SMSC of my chosing?

By silently, I mean: 'without pausing to prompt the user for permission to continue'. i.e. sending and receiving happen in the background.

I have read much about the PID and alpha attributes but and confused.

If it is indeed possible to develop a SAT application with these characteristics, would the TurboSIM solution be suitable to demonstrate this on a mass-market GSM phone?

Thanks
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pinkfoot



Joined: 07 Apr 2008
Posts: 11
PostPosted: Sat Apr 12, 2008 6:32 pm    Post subject: Why the deafening silence ? Reply with quote
Hi,

Surely someone on this forum can answer these questions ?

Thanks
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pz
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PostPosted: Tue Apr 15, 2008 8:31 am    Post subject: Re: SIM toolkit and silently sending and receiving SMSs Reply with quote
pinkfoot wrote:
Hi,

I need to confirm whether a SIM toolkit application can:

a) be downloaded to any > 32KiB standards compliant SIM card via OTA?


I doubt so, question what you mean by "standards compliant". It can be compliant but not fully implementing.

Quote:

b) silently receive Cell Broadcast (CB) messages?


Yes, these have to be STK CB messages though.

Quote:

c) silently receive SMSs? If so, what restrictions apply.


Yes, those with PID 0x7f.

Quote:

d) silently send SMSs to a MSISDN and SMSC of my chosing?


By silently, I mean: 'without pausing to prompt the user for permission to continue'. i.e. sending and receiving happen in the background.


Yes.

Quote:

I have read much about the PID and alpha attributes but and confused.


PID is just one byte SMS, if it has value 0x7f (=DATA DOWNLOAD) then is silently delivered to SIM without being stored anywhere. ALPHA is the message you see on screen - "Sending Message". If NULL then it should be not visible to user. Confirmation is not needed at all.

Quote:

If it is indeed possible to develop a SAT application with these characteristics, would the TurboSIM solution be suitable to demonstrate this on a mass-market GSM phone?

Thanks


Yes.
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