====== XMPP ======

===== Extension Documents =====
[[http://xmpp.org/extensions/xep-0184.html|XEP-0184: Message Delivery Receipts]]

===== Reference =====
http://sls.weco.net/node/9193

http://www.dotblogs.com.tw/billy3321/archive/2010/06/02/xmpp.aspx