Attended Transfer: Session#followRefer copies Replaces header to INVITE
Attended Transfer: Session#followRefer copies Replaces header to INVITE

(contains code written by @wakamoleguy and @james-onsip)

joseph-onsip/SIP.js,onsip/SIP.js,onsip/SIP.js,josephfrazier/SIP.js,Escaux/SIP.js,markandrus/SIP.js,ronlobo/SIP.js