diff --git a/doc/manuals/chapters/handover.adoc b/doc/manuals/chapters/handover.adoc
index b763701..297eafc 100644
--- a/doc/manuals/chapters/handover.adoc
+++ b/doc/manuals/chapters/handover.adoc
@@ -307,6 +307,15 @@
 the MSC, the configured cell identifiers must be of the same type. If in doubt,
 use the full CGI identifier everywhere.
 
+==== Reconfiguring Neighbors in a Running OsmoBSC
+
+When modifying a cell's neighbor configuration in a telnet VTY session while a cell is already active,
+the neighbor configuration will merely be cached in the BSC's local config. To take actual effect, it is
+necessary to
+
+- either, re-connect the cell to the BSC (e.g. via `drop bts connection <0-255> oml`)
+- or, re-send the System Information using `bts <0-255> resend-system-information`.
+
 === Configuring Handover Decisions
 
 For a long time, OsmoBSC has supported handover based on reception level