{
SipcHeader wwwHeader = (SipcHeader) this.session.getAttribute(SipcHeader.WWWAUTHENTICATE);
SipcRequest request = this.getMessageFactory().createUserAuthRequest(wwwHeader, presence,
this.context.getTransferFactory().isMutiConnectionSupported(),
this.context.getFetionStore().getStoreVersion());
request.setResponseHandler(new UserAuthResponseHandler(context, this, listener));
this.process(request);
}