kamailio:k43-async-sip-routing-nodejs

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kamailio:k43-async-sip-routing-nodejs [2015/09/07 12:49]
admin [Node.js Application]
kamailio:k43-async-sip-routing-nodejs [2015/09/07 13:36] (current)
admin [Async SIP Routing with Kamailio and Node.js]
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 ====== Async SIP Routing with Kamailio and Node.js ====== ====== Async SIP Routing with Kamailio and Node.js ======
  
-**Work in progress ​-- the tutorial is not complete yet**+Node.js-based external routing decision engine for Kamailio.
  
 ===== Overview ===== ===== Overview =====
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 The [[http://​kamailio.org/​docs/​modules/​stable/​modules/​rtjson.html|module rtjson]] defines a format for JSON document that makes it straightforward to push new destinations for a SIP request. The [[http://​kamailio.org/​docs/​modules/​stable/​modules/​jansson.html|module jansson]] is used to parse the JSON document in kamailio.cfg for fetching additional attributes that are relevant for processing. The [[http://​kamailio.org/​docs/​modules/​stable/​modules/​rtjson.html|module rtjson]] defines a format for JSON document that makes it straightforward to push new destinations for a SIP request. The [[http://​kamailio.org/​docs/​modules/​stable/​modules/​jansson.html|module jansson]] is used to parse the JSON document in kamailio.cfg for fetching additional attributes that are relevant for processing.
  
 +{{ :​kamailio:​kamailio-evapi-rtjson-nodejs.png?​400 |}}
 ===== SIP Routing ===== ===== SIP Routing =====
  
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 The example above results in: the request will be routed to sip:​127.0.0.1:​5080,​ via sip:​127.0.0.1:​5082,​ sip:​127.0.0.1:​5084,​ sip:​127.0.0.1:​5086;​ it will be sent using local socket udp:​127.0.0.1:​5060;​ From header display name will be set to **Alice** and From URI to **sip:​alice@wonderland.com**;​ To header display name will be set to **Bob** and To URI to **sip:​alice@wonderland.com**;​ branch flags will be updated with 8; retransmission will be done for 5000 milliseconds,​ waiting 30000 milliseconds while ringing. The example above results in: the request will be routed to sip:​127.0.0.1:​5080,​ via sip:​127.0.0.1:​5082,​ sip:​127.0.0.1:​5084,​ sip:​127.0.0.1:​5086;​ it will be sent using local socket udp:​127.0.0.1:​5060;​ From header display name will be set to **Alice** and From URI to **sip:​alice@wonderland.com**;​ To header display name will be set to **Bob** and To URI to **sip:​alice@wonderland.com**;​ branch flags will be updated with 8; retransmission will be done for 5000 milliseconds,​ waiting 30000 milliseconds while ringing.
 +
 +==== EVAPI Processing ====
 +
 +EVAPI is sort of generic framework to push events to external application from inside kamailio.cfg via TCP connections. It has the capability of suspending the processing of the SIP request until there is a response from the external application. By suspending the SIP request, other SIP messages can be processes, thus not blocking Kamailio while waiting for event response. This asynchronous mechanism enables high throughput for SIP routing.
 ===== Presentations ===== ===== Presentations =====
  


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