Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 11086] [IS-637A] SMS - Teleservice layer parameter --> Multiple Encoding user

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Comment # 10 on bug 11086 from Pascal Quantin

Here is the dissection I get when using the patch:
    Service Category Program Data
        Teleservice Subparam ID: Service Category Program Data (18)
        Length: 26
        0001 0... = Encoding: 7-bit ASCII (2)
        .... .001  0... .... = Operation code: Clear all Service Categories (2)
        .000 0000  0000 0000  1... .... = Operation code: Emergency Broadcasts
(1)
        .000 0000  1... .... = Operation code: English (1)
        .000 0000  1... .... = Maximum number of messages: 1
        .000 0... = Alert option: No alert (0)
        .... .000  1001 1... = Number of fields: 19
        Encoded program data: 9]
w%\g
)Ze9\l
        ..00 10.. = Operation code: Clear all Service Categories (2)
        .... ..11  0011 1011  0010 10.. = Operation code: Unknown (52938)
[Malformed Packet: ANSI IS-637-A Teleservice]
    [Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
        [Malformed Packet (Exception occurred)]
        [Severity level: Error]
        [Group: Malformed]

And here is what I get when enforcing the text decoding in 8-bit format instead
of 7-bit ASCII:
    Service Category Program Data
        Teleservice Subparam ID: Service Category Program Data (18)
        Length: 26
        0001 0... = Encoding: 7-bit ASCII (2)
        .... .001  0... .... = Operation code: Clear all Service Categories (2)
        .000 0000  0000 0000  1... .... = Operation code: Emergency Broadcasts
(1)
        .000 0000  1... .... = Operation code: English (1)
        .000 0000  1... .... = Maximum number of messages: 1
        .000 0... = Alert option: No alert (0)
        .... .000  1001 1... = Number of fields: 19
        Encoded program data: storing the message
        .... .000 = Reserved bit(s)

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