diff --git a/configs/sip.conf.sample b/configs/sip.conf.sample
index 9ed00aee20cb78f1ff32ee489ae1819709c7bd91..3879c062d58f2bf921137f042e8ee585d472c919 100644
--- a/configs/sip.conf.sample
+++ b/configs/sip.conf.sample
@@ -359,7 +359,8 @@ srvlookup=yes			; Enable DNS SRV lookups on outbound calls
 ;subscribecontext = default	; Set a specific context for SUBSCRIBE requests
 				; Useful to limit subscriptions to local extensions
 				; Settable per peer/user also
-;notifyringing = yes		; Notify subscriptions on RINGING state (default: no)
+;notifyringing = yes           ; Control whether subscriptions already INUSE get sent
+                               ; RINGING when another call is sent (default: no)
 ;notifyhold = yes		; Notify subscriptions on HOLD state (default: no)
 				; Turning on notifyringing and notifyhold will add a lot
 				; more database transactions if you are using realtime.