[Freeswitch-users] Routing calls based on 'Referred-By'

Aloha, I receive this snipped packet: INVITE sip:4479139@64.75.xxx.xxx:5060;transport=udp SIP/2.0 To: <sip:4479139@meta.xxx.com> Referred-By: <sip:4473452@meta.xxx.com> Diversion: <sip:4473452@meta.xxx.com>;reason=no-answer I would like the dial plan to route based on the number in the Refered-By or Diversion field. I have 10 DID's from a carrier and when the forward to me, they all have the same number in the invite, they say I should be able to route based on the Diversion field. Is there a way to get the data in the dial plan? Thanks for your help, Matt