Download SMACK apis from http://www.igniterealtime.org/downloads/download-landing.jsp?file=smack/smack_4_1_3.zip Download XML Pull Parser from http://www.extreme.indiana.edu/xgws/xsoap/xpp/mxp1/ Useful links http://java.jasks.org/how_to_effectively_use_persistent_xmpp_with_android