# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1613597492 0
# Node ID 6ba14a9247d251d464fe3b01e9d294cb03f2537e
# Parent  d924e4b1387f50cdf0a422858bbf229e0583d3e5
doc/User-oriented-commands: spn, pnn-dump and opl-dump documented

diff -r d924e4b1387f -r 6ba14a9247d2 doc/User-oriented-commands
--- a/doc/User-oriented-commands	Wed Feb 17 21:03:39 2021 +0000
+++ b/doc/User-oriented-commands	Wed Feb 17 21:31:32 2021 +0000
@@ -501,3 +501,17 @@
 Identifying MVNO SIMs
 =====================
 
+Many SIMs, particularly those from MVNOs, are programmed by their issuers to
+cause phones to display the name of the MVNO or some other party rather than
+the standard PLMN name decoded from the connected network's MCC-MNC.  This
+"personalization" programming can appear in EF_SPN (old style) or in EF_PNN and
+EF_OPL (newer style).  fc-simtool provides commands to display the content of
+these SIM files in human-readable form:
+
+spn
+pnn-dump
+opl-dump
+
+These commands take no arguments, and their human-readable output is not
+explained in detail here.  If you need to understand the meaning of various
+fields in detail, please refer to 3GPP TS 51.011.