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global 800 service through freenum.org. Michael Haberler Internet Foundation Austria mah@eunet.at. freenum.org & global 800 service. „Infrastructure ENUM“ routing experiment for SIP ITSP‘s instance of the „early exit, late entry to PSTN“ strategy enabled by ENUM
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global 800 service throughfreenum.org Michael Haberler Internet Foundation Austria mah@eunet.at
freenum.org & global 800 service • „Infrastructure ENUM“ routing experiment for SIP ITSP‘s • instance of the „early exit, late entry to PSTN“ strategy enabled by ENUM • idea – contribute 800 termination and use the other termination points in turn • routing done by entry & lookup in a private ENUM tree: • +43800.* sip:<destination>@gw.at43.at • add a ENUM lookup in freenum.org with SIP Express Router, Asterisk – out of the box • it‘s a controllable entry step before full-scale public ENUM deployment
+43 800 800 888 +1 +43 +1 800 1234567 at43 freenum.org how it works
example use : SIP Express Router # catch voice:sip ENUM entries if (enum_query("e164.arpa.", "voice")){ t_relay(); } # look up freenum.org ENUM entries if (enum_query("freenum.org.")) {t_relay(); } # just forward to PSTN rewritehostport("193.171.3.5:5060"); t_relay();
example use: Asterisk sip.conf: [general]search => e164.arpasearch => freenum.org
steps to contribute • you need a PSTN gateway accessible by SIP • permit open access for sip:+cc8XX*@gateway.cc • have us add ENUM wildcard in freenum.org
DNS Sample $ORIGIN .$TTL 600 ; 10 minutes3.4.freenum.org IN SOA ns2.at43.at. axelm.nic.at. ( 5 ; serial 1200 ; refresh (20 minutes) 3600 ; retry (1 hour) 604800 ; expire (1 week) 600 ; minimum (10 minutes) )$TTL 3600 ; 1 hour NS ns2.at43.at. NS ns5.univie.ac.at. NS ns-iad.loligo.com.$ORIGIN 0.0.8.3.4.freenum.org.* IN NAPTR 100 10 "u" "E2U+voice:sip" "!^\\+43800(.*)$!sip:00800\\1@samuel.ops.at43.at!" .* IN NAPTR 100 10 "u" "E2U+sip" "!^\\+43800(.*)$!sip:00800\\1@samuel.ops.at43.at!" .
Status • +1, +43, +31 termination in place • Spain, France, UK being set up • expect Korea, Japan, Canada
if you are interested • let us know – mah@eunet.at • site: www.freenum.org (being set up) • mailing list: freenum@mlist.greenspot.at • subscribe http://mlist.greenspot.at/cgi-bin/mailman/listinfo/freenum • contribute some termination in your country • use ours in exchange
thanks! Michael Haberler Internet Foundation Austria mah@eunet.at +43 59966 366001 pstn & sip+enum