Poikselka, M. & Mayer, G. The IMS IP Multimedia Concepts and Services - 3rd Ed. - New Delhi John Wiley and Sons, Inc 2009 - xx,502p. 25 cm. Text in English ISBN: 9780470721964 Subjects--Facted Index Terms: ELN Index Terms--Genre/Form: F-02 Dewey Class. No.: 621.382 / POI