IMS & Initial Filter Criteria

http://theimslantern.blogspot.tw/2007/06/ims-service-routing-big-picture.html

http://theimslantern.blogspot.tw/2007/07/ims-service-routing-service-profile.html

Kamailio 3.0.x and Asterisk 1.6.2 Realtime Integration using Asterisk Database

Forward Register Example

http://kb.asipto.com/asterisk:realtime:kamailio-3.0.x-asterisk-1.6.2-astdb,