Comment # 2
on bug 13092
from Pascal Quantin
Wireshark does not apply the algorithm descried in 3GPP 23.122 annex A but
instead tries to find a match with the ITU E.212 database: it first search for
a match using 2 digits MNC, and if it fails tries with 3 digits.
Note that has Wiresahrk does not have access to the USIM Administrative Data
Elementary File, it cannot reliably determine the MNC length. So it uses the
heuristic described above, that can of course fail, especially when the last
digit is a 0. We need to rework a bit the algorithm to make it more reliable.
One way could be to add the 310-316 MCC rule, but it would still fail for other
countries. Intead we should tore the indication of whether the PLMN ids 5 or 6
digits, instead of storing 5 digits PLMN with a trailing 0 as the 6th one.
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