So, BOSH [0], aka XMPP-over-HTTP ? Originally intended to allow XMPP in the browser, it turned out [1] to be solving a lot of other problems, including the frequent disconnections of a smartphone.

[0] http://xmpp.org/extensions/xep-0206.html [1] https://metajack.wordpress.com/2008/07/02/xmpp-is-better-wit...