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Michael Horvath
New member
Username: Havi

Post Number: 1
Registered: 04-2010
Posted on Thursday, April 15, 2010 - 10:21 am:   

Hi!

Could someone please help me parsing the service center number, the sender number and the date out of this pdu:

730604ae8d01bf02056a81093930343633360057696c6c6b6f6d6d656e207a756d207072616b7469 7363687374656e2047757473636865696e20616c6c6572205a656974656e21204469652041312047 757473636865696e20426f7820697374206b6f7374656e6c6f7320756e6420536965207370617265 6e2062617265732047656c642e204c6f7320676568742773206175660045c60d0361316775747363 6865696e626f782e61742f00081183000ac3072010041307364110c304201009080183070101

i allready decoded the message and the link according to this post http://www.nowsms.com/discus/messages/1/395.html, but im stuck on the header. to me it seems a bit short, could it be malformed? i would appreciate any help. the pdu type is 6, although i dont really know what that means to be honest. can someone give me a link to a paper where these types are descibed?

thanks in advance
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 7907
Registered: 10-2002
Posted on Friday, April 16, 2010 - 05:25 pm:   

Hi Michael,

This looks like a WAP Push PDU (WSP).

73 - transaction id
06 - push PDU
04 - headers len
AE - content-type: application/vnd.wap.sic
8D 01 FB - Content-length: 251

application/vnd.wap.sic content follows


The service centre number and sender number are not part of this PDU. They would be part of an SMS PDU that would carry this message.

If a WAP Push is sent in an SMS message, then you have a WSP WAP Push PDU that is packaged inside a WDP PDU for SMS. The WDP PDU then gets packaged inside of an SMS PDU.

The WSP and WDP specifications are part of the WAP Protocols, which can be found at http://www.openmobilealliance.org/Technical/wapindex.aspx

SMS PDU formats vary based upon what protocol you are using to interface with SMS. For example, if your interface is SMPP, you would refer to the SMPP protocol (and the service centre number is not available via SMPP). If you are using a GSM modem, then ETSI GSM 07.05 and 03.40 would apply (http://www.etsi.org).

-bn
Michael H.
New member
Username: Havi

Post Number: 2
Registered: 04-2010
Posted on Monday, April 19, 2010 - 09:11 am:   

thanks for your reply, that really helped me. you guys rock

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