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-rw-r--r--src/libmsc/msc_vty.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/libmsc/msc_vty.c b/src/libmsc/msc_vty.c
index 8ef48ff51..5bf970163 100644
--- a/src/libmsc/msc_vty.c
+++ b/src/libmsc/msc_vty.c
@@ -148,7 +148,10 @@ DEFUN(cfg_net_encryption,
cfg_net_encryption_cmd,
"encryption a5 <0-3> [<0-3>] [<0-3>] [<0-3>]",
"Encryption options\n"
- "GSM A5 Air Interface Encryption\n"
+ "GSM A5 Air Interface Encryption."
+ " NOTE: as long as OsmoMSC lacks distinct configuration for 3G encryption,"
+ " 3G encryption is enabled exactly when any 2G encryption is enabled."
+ " Hence configuring only A5/0 here switches off 3G encryption.\n"
"A5/n Algorithm Number\n"
"A5/n Algorithm Number\n"
"A5/n Algorithm Number\n"