[Freeswitch-users] How to copy from header

Hello Team I have a requirement to copy from header from the incoming INVITE to the outgoing INVITE right now, below is the from header from incomign invite From: "123-456-7788" <sip:+11234567788;cpc=ordinary@12.18.10.15:5060;user=phone;isup-oli=0>;tag=2bf345ee but the outgoing INVITE has the from header as below From: "123-456-7788" <sip:+11234567788@18.1.8.19>;tag=yaXFUFjD666ym How can i copy the cpc and isup-oli from the incoming from header to the outgoing header? Thanks in advance Regards Adi