Is there a way to parse headers from the sip invite.
INVITE sip:+1XXXXXXXXXX@XXX.XXX.XXX.XXX SIP/2.0
Via: SIP/2.0/UDP XXX.XXX.XXX.XXX:5060;branch=z9hG4bKcr33ea008g70i9rqb4j1.1
From: "WIRELESS CALLER" <sip:+1XXXXXXXXXX@XXX.XXX.XXX.XXX:5060>;tag=gK04471238
To: <sip:+1XXXXXXXXXX@XXX.XXX.XXX.XXX>...