diff --git a/configs/sip.conf.sample b/configs/sip.conf.sample
index b6af2faeb1..2948eebabd 100644
--- a/configs/sip.conf.sample
+++ b/configs/sip.conf.sample
@@ -506,6 +506,7 @@ srvlookup=yes			; Enable DNS SRV lookups on outbound calls
 					; Call-limits will not be enforced on real-time peers,
 					; since they are not stored in-memory
 ;port=80				; The port number we want to connect to on the remote side
+					; Also used as "defaultport" in combination with "defaultip" settings
 
 ;------------------------------------------------------------------------------
 ; Definitions of locally connected SIP devices