ENUM On Tuesday, May 22, 2018, 12:21:31 PM EDT, Alex Balashov <abalashov(a)evaristesys.com> wrote: What is the nature of the dip interface? On Tue, May 22, 2018 at 04:18:37PM +0000, KamDev Essa wrote: -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

This is awesome. Thanks. However, in the link you sent I do not see how to send the enum request to the IP of my provider.  KD On Tuesday, May 22, 2018, 12:31:33 PM EDT, Alex Balashov <abalashov(a)evaristesys.com> wrote: The answer, then, smiles out straightforwardly: https://kamailio.org/docs/modules/5.1.x/modules/enum.html But a SIP redirect/RFC 4694 interface would be easier to deal with and is more commonplace. Neither require a special module. Modules perform technical functions that otherwise require a lot of work in route script, or where functionality is required that may not be exposed in generic route script constructs. An LNP query via ENUM or SIP redirect may serve a business-specific function, but it's still just an ENUM query or a SIP redirect. On Tue, May 22, 2018 at 04:25:36PM +0000, KamDev Essa wrote: -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

On Tue, May 22, 2018 at 05:00:30PM +0000, KamDev Essa wrote: The usual expectation would be that the ENUM result would be interrogated through the DNS hierarchy exposed by the DNS resolvers configured on the system globally, AFAIK. -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

What is queried when you use enum_query() as you'd expect to? You might have to take a packet capture to determine that. On Tue, May 22, 2018 at 05:18:50PM +0000, KamDev Essa wrote: -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

Right, but that doesn't answer my question. On Tue, May 22, 2018 at 05:30:16PM +0000, KamDev Essa wrote: -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

For reference, this is how my lrn provder replies to a dns query: ; <<>> DiG 9.11.2 <<>> @enum.AnEnumProvider.com -t naptr 3.2.6.4.2.6.5.5.7.7.1.lrn.e164.arpa ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7531 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;3.2.6.4.2.6.5.5.7.7.1.lrn.e164.arpa. IN NAPTR ;; ANSWER SECTION: 3.2.6.4.2.6.5.5.7.7.1.lrn.e164.arpa. 30 IN NAPTR 10 10 "u" "E2U+pstn:tel" "!^.*$!tel:+17755624623;rn=+17753840044;npdi!" . ;; Query time: 79 msec ;; SERVER: 108.166.172.197#53(108.166.172.197) ;; WHEN: Tue May 22 16:02:15 EDT 2018 ;; MSG SIZE rcvd: 130 So he needs to send the naptr query to a specific host, and to grab and unpack the answer to get the rn. To the OP, I suspect the only good way to do that with kamailio is to use one of the Turing complete modules (perl, lua, python or the like) to write the necessary code. Or write your own kamailio module. The answer is likely the same when using a web-based api to do the dips. -JimC -- James Cloos &lt;cloos(a)jhcloos.com&gt; OpenPGP: 0x997A9F17ED7DAEA6

By going http_query I could kill 2 birds with 1 stone. - dip LRN - dip db and get composed LCR string for my Contact header. Then Kamailio just update the contact header and replies 300 back and we are off to the races. Basically moving business logic off kamailio and keeping it lean and mean.   KD  On Tuesday, May 22, 2018, 4:29:53 PM EDT, KamDev Essa &lt;kamdevessa(a)yahoo.com&gt; wrote: James, Thanks great example. I think I will go with  http_query(url, result) route because I am not as savvy @ python or lua as I am on C# over .NetCore. Yes I can see delays with the two resource hop. I am hoping its not too much.  KD       On Tuesday, May 22, 2018, 4:04:36 PM EDT, James Cloos &lt;cloos(a)jhcloos.com&gt; wrote: For reference, this is how my lrn provder replies to a dns query: ; <<>> DiG 9.11.2 <<>> @enum.AnEnumProvider.com -t naptr 3.2.6.4.2.6.5.5.7.7.1.lrn.e164.arpa ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7531 ;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;3.2.6.4.2.6.5.5.7.7.1.lrn.e164.arpa. IN        NAPTR ;; ANSWER SECTION: 3.2.6.4.2.6.5.5.7.7.1.lrn.e164.arpa. 30 IN NAPTR 10 10 "u" "E2U+pstn:tel" "!^.*$!tel:+17755624623;rn=+17753840044;npdi!" . ;; Query time: 79 msec ;; SERVER: 108.166.172.197#53(108.166.172.197) ;; WHEN: Tue May 22 16:02:15 EDT 2018 ;; MSG SIZE  rcvd: 130 So he needs to send the naptr query to a specific host, and to grab and unpack the answer to get the rn. To the OP, I suspect the only good way to do that with kamailio is to use one of the Turing complete modules (perl, lua, python or the like) to write the necessary code. Or write your own kamailio module. The answer is likely the same when using a web-based api to do the dips. -JimC -- James Cloos &lt;cloos(a)jhcloos.com&gt;        OpenPGP: 0x997A9F17ED7DAEA6 _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users