Philipp Maier 969f9c0e4b pySim/EF.SMSP: fix encoding of TP-Destination Address ...

The TP-Destination Address in EF.SMSP uses the same encoding as the
TS-Service Centre Address field. However, even though the encoding
of both fields looks almost identical, it actually isn't.

The TS-Service Centre Address field encodes the length field as
octets required for the call_number + one octet for ton_npi.
(see also: 3GPP TS 24.011, section 8.2.5.2)

The TP-Destination Address uses the number of digits of the
call_number directly in the length field.
(see also: 3GPP TS 23.040, section 9.1.2.5)

Related: SYS#7765
Change-Id: I55c123c9e244e5a6e71a0348f5d476ef03e618e8

2026-03-25 15:34:56 +01:00

58 KiB

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