diff --git a/README.TGRewrite b/README.TGRewrite
index 5593ad8..9c19c36 100644
--- a/README.TGRewrite
+++ b/README.TGRewrite
@@ -8,13 +8,21 @@ TG Rewrite, when enabled for a slot, rewrites the DST ID of incoming talkgroup
 traffic to TG9, alowing audio to be heard by any user monitoring TG9 on that 
 slot. If the user then replies on TG9, as long as they key-up during the 
 CallHang period, the DST ID (TG) is again rewritten on the outbound traffic, 
-which transparently maps back to the originating talkgroup. 
+which transparently maps back to the originating talkgroup. Rewrite is also 
+enabled if an outbound call is made to a talkgroup and then TG9 is activated 
+during the callhang period. 
 
 To use a User Activated talk-group, briefly key-up on that talk-group to 
 activate it, then switch back to TG9 and talk as normal. If the CallHang period 
 expires, you may need to activate the talk-group again by keying up on that 
 talkgroup briefly, as before. 
 
+Note, proper ettiquette dictates that the user confirms the repeater is free 
+before activiating this feature. It is best to ensure the slot is keyed from 
+"cold" when activating a talkgroup for rewrite. Although not strictly neccesary, 
+it may be advantageous to also disconnect the repeater from the reflector system 
+first, if using slot 2.
+
 It is useful to set the CallHang parameter to a generous amount. I am currently 
 using seven seconds.