View source for VoIP Cookbook: ENUM Routing Table in OpenSIPS configuration

The short version

 if (uri=~"^sip:00[1-9][0-9]*@*") {
     strip(2);
     prefix("+");
 };
 
 if (uri=~"sip:\+[0-9]+@*")
         enum_query("e164.id.");

The above example will allow all client from all server to access our ENUM query routing. A more complete version of ENUM query may be as follows,

 # Somewhere in the route[x] section:
 
 # if you want to make ENUM work with numbers starting with "00",
 # use the following to convert "00" it into a "+"
 
 if (uri=~"^sip:00[1-9][0-9]*@example\.net") {
     # strip leading "00"
     # (change example.net to your domainname or skip the stuff after the "@")
     strip(2);
     # (adjust, if your international prefix is something else than "00")
     prefix("+");
 };
 
 # check if request uri starts with an international phone
 # number (+X.), if yes, try to ENUM resolve in e164.arpa.
 # if no result, try in nrenum.net
 if (uri=~"sip:\+[0-9]+@example\.net") {
     # (change example.net to your domainname or skip the stuff after the "@")
     if ( !enum_query("e164.arpa.") ) {
         enum_query("nrenum.net.");
     };
 }; 


Another alternative that may be extended is as follows,

 # is this an ENUM destination (leading +?)
 if (method=="INVITE" && uri=~"sip:\+[0-9]+ at iptel\.org") {
         if (!enum_query("voice"))       # if parameter empty, it defaults to "e2u+sip"
            enum_query("");             # E2U+sip
    }

Yet another alternative that can be tried / expanded is as follows,

 if (is_from_user_enum()) {
    enum_query("");
    }


==See Also==

* [[VoIP Cookbook: Building your own Telecommunication Infrastructure]]
* [[VoIP Cookbook: OpenSIPS High Performance Softswitch]]