[jdev] how to get the rosters when the visitor did not register?

jiyanbao at gmail.com jiyanbao at gmail.com
Sat Apr 20 02:30:15 UTC 2013

Hi everyone,

	I'm developing an online customer service system, but the problem is :
	how to talk with online visitors?because the xmpp requires that subscription has done before talking each other. 
	so, how to get the roster when the user did not register?

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