/** Costructs a new MessageAgent. */
public MessageAgent(
SipProvider sip_provider, UserAgentProfile user_profile, MessageAgentListener listener) {
this.sip_provider = sip_provider;
this.log = sip_provider.getLog();
this.sip_interface = null;
this.listener = listener;
this.user_profile = user_profile;
// if no contact_url and/or from_url has been set, create it now
user_profile.initContactAddress(sip_provider);
}
