[Serusers] freenum.org - toll-free ENUM project - ser recipe

[John Todd]

This is usable if you have Juha Heinanen's patches (in "unstable" as 
of December 17, 2003) for multiple suffixes for ENUM lookups.  This 
is a "temporary" hack until ENUM is rolled out globally (zzzzzz....)

If anyone has a +1-800 gateway (North America) that they would like 
to see added, please send me an NS PTR or NAPTR for it and we'll put 
it in place.

JT


At 5:10 PM +0100 1/8/04, Michael Haberler wrote:
>Date: Thu, 08 Jan 2004 17:10:56 +0100
>To: [snip]
>From: Michael Haberler <mah at eunet.at>
>Subject: freenum.org - free "global" 800 service based on
>   infrastructure ENUM
>
>Happy New Year!
>
>You will recall we discussed setting up a little infrastructure ENUM 
>trial project. We would populate freenum.org with NAPTR records 
>pointing to local gateway operators willing to gateway "free" calls.
>
>Ok, works for us now! Axel has completed the SIP express router 
>setup for the at43 users, and Otmar has done the Asterisk part. The 
>new enum module for SER is needed so arbitrary domain suffices can 
>be used for lookup. A configuration snippet is attached. Any +43800 
>number listed in freenum.org (or wildcards for ranges) will be 
>terminated via a local Asterisk gateway.
>
>In simple words: add the below code between #start and #end and your 
>users will be able to dial any Austrian +43 800 number. Try the 
>nic.at number +43 800 888 888 to start with.
>
>We encourage you to try this out with your SIP setup, and maybe you 
>can contribute some local termination of 800 or other free numbers.
>
>If you want to contribute termination, drop us a mail and we'll add 
>the entries to freenum.org. Let us know before you inform a sizeable 
>user base about this..
>
>This rocks - it is the easiest way for global free numbers I've seen so far!
>
>cheers,
>
>-Michael
>
>
>snippet from ser.cfg:
>
>         # catch voice:sip ENUM entries, only if PSTN not forced
>         if (enum_query("e164.arpa.", "voice")) {
>             if (is_uri_host_local()) {
>                 route(5);
>                 break;
>             };
>             if (!t_relay()) {
>                 xlog("L_ERR", "%is [%Tf]: %rm %fu -> %ru [R4]: ENUM 
>destination: relaying failed\n");
>                 sl_reply_error();
>                 break;
>             };
>             break;
>         };
>	 #start
>         # look up freenum.org ENUM entries
>         if (enum_query("freenum.org")) {
>             if (!t_relay()) {
>                 xlog("L_ERR", "%is [%Tf]: %rm %fu -> %ru [R4]: 
>freenum.org destination: relaying failed\n");
>                 sl_reply_error();
>                 break;
>             };
>             xlog("L_ERR", "%is [%Tf]: %rm %fu -> %ru [R4]: 
>freenum.org destination\n");
>             break;
>         };
>	 #end
>         # nothing found, try PSTN
>         if (method=="CANCEL" || method=="BYE" || method=="ACK") {
>             xlog("L_INFO", "%is [%Tf]: %rm %fu -> %ru [R4]: just 
>forwarding to PSTN");
>             rewritehostport("1.2.3.4:5060");
>             t_relay();
>             break;
>         };