diff --git a/configs/sip.conf.sample b/configs/sip.conf.sample
index 0b73f08d12cfc279a6cdec2f43ea7bde8966ff4d..c365b0185311a7a976eef9f60e43b0beb5fabf4e 100644
--- a/configs/sip.conf.sample
+++ b/configs/sip.conf.sample
@@ -413,17 +413,21 @@ srvlookup=yes                   ; Enable DNS SRV lookups on outbound calls
 ;----------------------------------------- OUTBOUND SIP REGISTRATIONS  ------------------------
 ; Asterisk can register as a SIP user agent to a SIP proxy (provider)
 ; Format for the register statement is:
-;       register => [transport://]user[:secret[:authuser]]@host[:port][/extension][~expiry]
+;       register => [transport://]user[:secret[:authuser]]@domain[:port][/extension][~expiry]
 ;
 ; 
 ;
+; domain is either 
+;	- domain in DNS
+; 	- host name in DNS
+;	- the name of a peer defined below or in realtime
+; The domain is where you register your username, so your SIP uri you are registering to 
+; is username@domain
+;
 ; If no extension is given, the 's' extension is used. The extension needs to
 ; be defined in extensions.conf to be able to accept calls from this SIP proxy
 ; (provider).
 ;
-; host is either a host name defined in DNS or the name of a section defined
-; below.
-;
 ; A similar effect can be achieved by adding a "callbackextension" option in a peer section.
 ; this is equivalent to having the following line in the general section:
 ;