Ady Wicaksono Daily Activities

GSM Mobile Application Part (MAP) – Part 2

with 4 comments

Let us continue with GSM MAP :) . GSM MAP Protocol consist of basic communication protocol and user-specific/special communication protocol. Basic communication protocol including:

  1. MAP-OPEN to open connection
  2. MAP-CLOSE to
  3. close connection
  4. MAP-U-ABORT/MAP-P-ABORT to abort connection
  5. MAP-DELIMITER to send user specific protocol to peer

Protocol sequence is just like this

1. Opening

opening-map.png

2. Continuing

continue-map.png

3. Closing

close-map.png

4. Abort

Simply a client/user send MAP-U-ABORT or a server/provider send MAP-P-ABORT

Example:

MAP-OPEN
--------
tc7e2 f15 d2d s00 i001b r0000 p(42)
010b09060704000001001903010c130100080012045413989988030d1300000800120444000000001900

MAP-MT-FORWARD-SHORT-MESSAGE-REQ
--------------------------------
tc7e0 f15 d2d s00 i001b r0000 p(127)
45170900073208070010101518090407974400000000191962440a9154131312150000702060915532005b050003e10202c8203aba0c12ddc372d0db0da297e5f2b75c046a87f32076784e078541e7b2bb2c0fd3d36f37485ca783e86f90bc4c9797c374d0fd5d679341e232280c128dc3f4f09c2e7fc3d165910b0e010200

MAP-DELIMITER
--------------
tc7e2 f15 d2d s00 i001b r0000 p(2)
0500

Written by adywicaksono

July 17, 2007 at 4:50 pm

Posted in Telco - GSM

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4 Responses

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  1. DataKinetics yah ? :)

    salam kenal

    tukangKoding

    September 6, 2007 at 8:20 am

    Reply

  2. Datakinetics itu lho..perusahaan yang mbuat card SS7 . Dari trace sampeyan diatas..saya perkirakan itu trace dari vendor tsb.. :)

    tukangKoding

    September 9, 2007 at 2:31 pm

    Reply

  3. Betul, Datakinetics a.k.a Intel Septel Card

    adywicaksono

    September 16, 2007 at 5:26 am

    Reply

  4. If you need a nice tool to view messages from Septel log in Ethereal/Wireshark, than try my decoder tool:
    http://www.mib.net.ua/2007/10/dk-septel-log-decoder.html

    Bogdan

    October 31, 2007 at 9:21 am

    Reply

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