+ OFXMLElement *caps = [OFXMLElement elementWithName: @"c"
+ namespace: XMPP_NS_CAPS];
+ [caps addAttributeWithName: @"hash"
+ stringValue: @"sha-1"];
+ [caps addAttributeWithName: @"ver"
+ stringValue: [_discoEntity capsHash]];
+ [caps addAttributeWithName: @"node"
+ stringValue: JUB_CLIENT_URI];
+
+ [presence addChild: caps];
+