[Users] New Feature: Supported methods and lookup

Hi, based on Juha's patch - saving in usrloc the supported methods advertised during REGISTER - I extended lookup() function to perform method based filtering. What this means: lookup() may return only contacts which supports the method of the processed request. Ex: there are two clients registering as same user: 1) a SIP phone which support INVITE & family, but no presence and messaging. 2) a soft messaging client : supports only MESSAGE When a call hits the server, the lookup() will send it only to contact (1), to the phone, since the contact (2) does not support INVITE. When a MESSAGE hits the server, the lookup() will send it only to contact (2), to the soft client, since the contact (1) does not support MESSAGE. the advantage is that you avoid un-necessary parallel forking and extra signalling. Also there are SIP implementation which does not even reply to methods they are not supporting, forcing the proxy to generate timeout..:( The feature may be turned on or off via the module parameter "method_filtering": http://www.openser.org/docs/modules/1.1.x/registrar.html#AEN247 For more, see also the script snapshot from : http://www.openser.org/docs/modules/1.1.x/registrar.html#AEN288 regards, bogdan