Hello, if you install from sources, there is practically everything: ser + kamailio together, it is up to you what modules you want to use. If you install from kamailio packages (debian, centos), you get only kamailio specific modules (what is located in modules/ and modules_k/). Maturity of the code is the same, I am more into kamailio specific modules, though, since I use them. Kamailio is traditionally more interactive in terms of public relations, having a clear release policy, with packages built every time. Also, kamailio specific modules have more into SIMPLE extensions (I mean here presence, xcap, ...), but this is not a problem since you can use the modules with the ones developed in the past by SER. So there is nothing different between Kamailio and SER if you install from sources. As mentioned in the link, there are just some inter-module dependencies, so when using a module, you have have to use another specific one. This is actually valid in the same group of modules (like in modules_k), one module requires another one. What really make the difference in a deployment is the database structure used behind. If you start from scratch, it does not matter probably, but people upgrading from older versions, tend to stick to what they have, so they continue using one or the other. From my observations on this mailing list, it is more likely you get people answering more often for kamailio than ser. Also, there are more tutorials showing how to use kamailio, including integration with asterisk, if that is main concern, for example: * http://kb.asipto.com/asterisk:index Cheers, Daniel On 4/9/12 9:43 PM, Daniel Gonzalez wrote: -- Daniel-Constantin Mierla Kamailio Advanced Training, April 23-26, 2012, Berlin, Germany http://www.asipto.com/index.php/kamailio-advanced-training/ _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users