Wireshark-bugs: [Wireshark-bugs] [Bug 7187] New: IMSI_M_11_12 not decoded correctly in IS-683
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Mon, 23 Apr 2012 22:43:46 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7187

           Summary: IMSI_M_11_12 not decoded correctly in IS-683
           Product: Wireshark
           Version: 1.4.0
          Platform: All
        OS/Version: other
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: emduece88@xxxxxxxxx
                CC: dave.cabot@xxxxxxxxxxxxxxxxxx
        Depends on: 5218


Build Information:

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+++ This bug was initially created as a clone of Bug #5218 +++

Build Information:
Built from the RPM spec file from Fedora.  Built and ran on CentOS 5.2.
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In decoding a CDMA NAM Download the IMSI_M_11_12 portion is incorrect.

ANSI Mobile Application Part
    sMSDeliveryPointToPoint
        mobileIdentificationNumber - 2394253000
            BCD digits: 2394253000
        electronicSerialNumber: 12345678
        serviceIndicator: CDMA OTASP Service (1)
        sms-BearerData: 0102020d83451e8c93d48e9e020007fffc0106a9493a6a69...
        sms-TeleserviceIdentifier: 0000
ANSI IS-683 (OTA (Mobile)) Forward Link
    Forward Link Message Type: Download Request (1)
    Number of parameter blocks (2)
    [1]:  CDMA NAM Download (2)
        Length: 13
        1... .... .... .... :  IMSI_M Class assignment of the mobile station
(IM
SI_M_CLASS), Class 1
        .000 .... .... .... :  Number of IMSI_M address digits
(IMSI_M_ADDR_NUM)
 (0), 4 digits in NMSI
        .... 0011 0100 01.. :  Mobile country code (MCC_M)
        ..00 0101 0... .... :  11th and 12th digits of the IMSI_M
(IMSI__M_11_12
)
        The least significant 10 digits of the IMSI_M (IMSI_M_S) (34 bits)
        .... ...0 100. .... :  Access overload class (ACCOLC) (4)


IMSI_M_11_12 should be 0100011 in this case.

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