I want to study the Slient SMS, How can it be constructed? Anyone kowns?
Hi,
depends :) basically a change of PID and/or DCS should help, refer to TS 03.40 specification, however this will require some testing and/or device/gateway to send the sms with.
What do you intend to use silent sms for?
Cheers, Lukas
On Mon, May 14, 2012 at 3:27 PM, Chengcheng Gou gouchengcheng@gmail.comwrote:
I want to study the Slient SMS, How can it be constructed? Anyone kowns?
Do you mean using osmocom or not? If not the answer is a bit OT, but you can do it easily using AT commands that almost every phone support. Have a look at the command AT+CSMP.
On Mon, May 14, 2012 at 3:27 PM, Chengcheng Gou gouchengcheng@gmail.comwrote:
I want to study the Slient SMS, How can it be constructed? Anyone kowns?
Hei, consider also, that some operators detects silent sms and restores automatically TP-PID and TP-DCS.
Moreover changing TP-PID/TP-DCS I suggest you to use also Message Waiting Indication-Discard option [1].
Some examples:
#pdu='0011000C91'+str(num)+'0000AA0141' # SMS Classic #pdu='0011000C91'+str(num)+'4000AA0141' # 0x40 (TP-PID) #pdu='0011000C91'+str(num)+'40C0AA0141' # 0x40(TP-PID) and 0xC0(Message Waiting Indication-Discard)
Cheers, Luca
[1] http://mobiletidings.com/2009/07/08/voicemail-waiting-indication-sms/
On Mon, May 14, 2012 at 3:27 PM, Chengcheng Gou gouchengcheng@gmail.com wrote: I want to study the Slient SMS, How can it be constructed? Anyone kowns?
baseband-devel@lists.osmocom.org
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Chengcheng Gou -
Dario Lombardo -
Luca Bongiorni -
Lukas Kuzmiak