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NowSMS Support Forums ⬆ NowSMS Support - MMS & Advanced Issues ⬆ Archive through June 09, 2011 ⬆ |
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| Author | Message | |||
| srini_ussd New member Username: Srini_ussd Post Number: 1 Registered: 07-2009 |
Hi, How to send "SIM Data Download" text message (I am using the pid =7f and dcs=f6.) 1.I have the licensed nowsms (v2006.10.31). 2.I have tried with the following URL http://locallhost:port/PhoneNumber=9650050746&Text=testmessage&PID=7f&DSC=f6 Still it is acting as normal SMS only. Plz help me to solve this issue. Thanks, SrinivasaRao 9312233576 | |||
| Des - NowSMS Support Board Administrator Username: Desosms Post Number: 1210 Registered: 08-2008 |
Hi, I can't give much advice on this. PID and DCS are ok (should be DCS, not DSC). However if you are sending invalid data (such as text=testmessage), then you will not get very far. There's also generally UDH (user data header) involved ... 027000. You need to construct an ETSI GSM 11.11/11.14 binary message with a valid security code for encryption. ETSI GSM 03.48 defines the security mechanisms for the encryption of the data. What are you trying to accomplish? -- Des NowSMS Support | |||
| dinesh s New member Username: Dinesh_sms Post Number: 1 Registered: 10-2009 |
Hi, I want to change the "IMSI" and "Service Centre Address" in a GSM mobie's SIM. I have SMSC,SMPP Server and SMPP Client(ESME). I shall send Submit-SM from ESME. ( ESME-->(submit-sm)-->SMPPServer-->SMSC-->Mobile Station-->SIM ). I just know that protocol-id:7f,dcs:f6 must be specified. I would like to know how to form the submit-sm message(i.e. encoding) so that the IMSI /SMSC Address will get changed in a Mobile Station via SMS. While updating IMSI/SMSC Addr, is it required to do Authentication? If yes then how? Please give me info, docs or inputs if u have experience in this. dinesh1510@hotmail.com | |||
| Des - NowSMS Support Board Administrator Username: Desosms Post Number: 1376 Registered: 08-2008 |
Start reading the specifications that I referenced above. You can find them at http://www.etsi.org, or more specifically http://pda.etsi.org/pda/queryform.asp. And yes, you do need to sign your message with appropriate security codes for the SIM ... otherwise that would be a pretty big security hole, don't you think? -- Des NowSMS Support | |||
| dinesh s New member Username: Dinesh_sms Post Number: 2 Registered: 10-2009 |
Hi Des, Thanks for ur prompt response. I have gone through the above references. I do not understand how to form a message which will inform SIM to update the contents of a file. e.g. I want to write "123456" to the file "EF-IMSI", whose file id is "F607". Do I need to form data part of Submit-SM with UDHI enabled and UDH as shown in ETSI GSM 03.48(sec 5,6)? and two commands viz "SELECT"- to select "EF-IMSI" & "UPDATE BINARY"- with new IMSI number to be written to file? After sending this Submit-SM, shall I wait for a Response from MS? | |||
| Dave New member Username: Dave10 Post Number: 1 Registered: 08-2010 |
Hi, for SIM data download, we nee to construct an ETSI GSM 11.11/11.14 binary message with a valid security code for encryption. Can I check is there any means to obtain the values for SPI,KIC,KID and TAR? Only the vendors have it? Can I derive them if I have the sim KI-128-1? Thanks | |||
| Casper Helenius New member Username: Casperhelenius Post Number: 2 Registered: 01-2011 |
Using the web interface, I am trying to send the following message: Phonenumber: +45xxxxxxxx UDH: 027000 Binary data: A0A40000027F10A0A40000026F42A0DC01042A544443FFFFFFFFFFFFFFFFFFFFFFEDFFFFFFFFFFFF FFFFFFFFFFFF06915421436587FFFFFFFFFFFFFFAA PID: 7f DCS: f6 This should (supposedly?) change the SMSC/service center number on the SIM-card. However, nothing seems to get through. NowSMS reports no errors. Am I missing something? //Casper | |||
| Des - NowSMS Support Board Administrator Username: Desosms Post Number: 2850 Registered: 08-2008 |
Hi Casper, I wish I knew. If you could explain how you generated the data to update the SIM, I can try to follow through the specifications and see if I notice anything missing. The following thread might also be helpful to you: http://support.nowsms.com/discus/messages/12/60056.html (Unfortunately the response at the end which indicates that he was eventually successful lacks some detail, and appears to have contradictory advice, although that could be a typo.) -- Des NowSMS Support | |||
