Update access_controls.rst

source/advanced/access_controls.rst

@@ -6,10 +6,10 @@ Access control list can allow or deny ranges of IP addresses.  There are several
 
 **providers - access conroll list**
 
-*  The main purpose is for your voip provider (carrier) IP addresses to the CIDR.
+*  The main purpose of the Providers list is for your voip provider (carrier) IP addresses to the CIDR.
 *  Be careful with what and how you use ACL.
 *  Most common mistakes result in calls not working between extensions and other undesirable results. 
-*  Be sure to keep Domains access control to default deny.
+*  Be sure to keep **providers** access control (formerly called domains) to default deny.
 *  Do not put your public ip or phone IP addresses in the domains access control list.
 *  Don't supply both the domain and the cidr on the same node.
 *  If adding a single IP address to the CIDR field make sure to add /32 on the end of the IP address.