Good Day List, I am very new to Kamailio and trying to understand at 10,000 feet how it may be able to be used. I was wondering if the following Scenario would be possible and if so what modules would accomplish this aspect.  (Any URLs for further reading would be appreciated) Scenario: Given  1) SoftPhones will register as follows sip uri, user(a)subdomain.myvoipserver.com <mailto:user@subdomain.myvoipserver.com>  2) The following users are authorized to connect (this would be stored in a config file etc): 1001,1003,1007 are valid users for apples.myvoipserver.com <http://apples.myvoipserver.com/> 1001,2213,5817 are valid users for oranges.myvoipserver.com <http://oranges.myvoipserver.com/> Is it possible for Kamailio to perform the following evaluation and then take the appropriate steps: If [domain is apples.myvoipserver.com <http://apples.myvoipserver.com/> AND user portion is 1001] then Forward/Proxy the SIP/RTP packets to Asterisk server responsible for registration and audio for the domain apples.myvoipserver.com <http://apples.myvoipserver.com/>   Else if [domain is oranges.myvoipserver.com <http://oranges.myvoipserver.com/> AND user portion is 2213] then Forward/Proxy the SIP/RTP packets to Asterisk server responsible for registration and audio for the domain oranges.myvoipserver.com <http://oranges.myvoipserver.com/> Else Silently Drop packets etc.   given the above evaluation rules, a user who tries to register as  1001(a)apples.myvoipserver.com <mailto:1001@apples.myvoipserver.com>  would be granted access and their SIP Packets and subsequent RTP would be forwarded to the asterisk server at apples.myvoipserver.com <http://apples.myvoipserver.com>, where said server would take care of the Registration, and any subsequent calls, subscriptions, Options etc. 1004@ apples.myvoipserver.com <http://apples.myvoipserver.com> Would not match the authorized list for apples.myvoipserver.com <http://apples.myvoipserver.com> (1001,1003,1007), therefore this registration attempt would be silently dropped 2213(a)apples.myvoipserver.com <mailto:2213@apples.myvoipserver.com>  would be granted access and their SIP Packets and subsequent RTP would be forwarded to the asterisk server at oranges.myvoipserver.com <http://oranges.myvoipserver.com>, where said server would take care of the Registration, and any subsequent calls, subscriptions, Options etc.  Thanks for any information to assist me in understanding how this would work. ~ron _______________________________________________ Kamailio (SER) - Users Mailing List sr-users(a)lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users