# HG changeset patch # User Mychaela Falconia # Date 1613365071 0 # Node ID a008f7a4bddf456e1ac79010c0f1e67860dea0c6 # Parent 8dee7aa9ec584437462dba60814037ad7e966a24 doc/User-oriented-commands: dump-lnd documented diff -r 8dee7aa9ec58 -r a008f7a4bddf doc/User-oriented-commands --- a/doc/User-oriented-commands Mon Feb 15 04:38:09 2021 +0000 +++ b/doc/User-oriented-commands Mon Feb 15 04:57:51 2021 +0000 @@ -286,6 +286,28 @@ Last Number Dialed (LND) ======================== +Traditional SIMs include a cyclic file that is intended to be updated whenever +an outgoing call is dialed - but it is up to individual phone designs whether +they actually update this LND cyclic store or not. This SIM LND store has the +same record format as phonebooks, carrying only phone numbers and optional alpha +tags - there are no fields for date & time, call duration or status as in call +answered or not. Because of the limitations of this SIM LND store, most phone +designs do not use it, and instead go with their own implementation of call +history lists. + +Because this LND store is a cyclic file, not linear fixed like phonebooks, it +can only be dumped - it cannot be freely edited. (The only update operation +allowed on cyclic files is writing a new record that becomes the new #1, +shifting all previous records down and losing the oldest one - but it is an +operation to be performed by phones if they support this LND as envisioned by +ancient spec writers, not something we are in the business of with fc-simtool.) + +The command to dump the LND cyclic store is just 'dump-lnd'. If you have had +your SIM for a very long time, having used it in different phones with different +firmwares, it may be interesting to look at the output of dump-lnd - you may +have LND records that were generated ages ago by other phones if your current +one does not write into SIM LND. + Manipulating stored SMS =======================