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dexter has posted comments on this change by dexter. ( https://gerrit.osmocom.org/c/pysim/+/38117?usp=email )
Change subject: ts_51_011: replace encoding of EF.MSISDN with construct model ......................................................................
Patch Set 5:
(1 comment)
Patchset:
PS5: Interesting: The construct version on the tester was 2.10.68, on my workstation where the pySim-trace test is passing it was 2.10.70. Presumably this older version has problems to evaluate the COptional correctly and was letting 0xFF bytes into the GSM0338 decoder.
Also the file contents in the trace look wild: ff0791942143658709ffffffffffffffffffffffffffffffffffffffffffffffffff
In any case, the decoding works now!