title: Make an attended transfer with SIP.js
body: <p>Good morning, I need to make attended transfers with SIP.js. Anyone succeded in this task?
  I can only make blind transfers right now, i found an article that reports that in version 0.7.x there is support for attended transfer trough replace command.</p>
  
  <p><a href="https://www.onsip.com/blog/sipjs-070-adds-fixes-and-support-for-attended-transfer-recommended-upgrade" rel="nofollow">https://www.onsip.com/blog/sipjs-070-adds-fixes-and-support-for-attended-transfer-recommended-upgrade</a></p>