TY - BOOK AU - Poikselka, Miikka AU - Mayer, Georg TI - The IMS: IP multimedia concepts and services SN - 0470721960 U1 - 621.38212 POI PY - 2009/// CY - Singapore PB - John Wiley & Sons KW - Wireless communication systems KW - Multimedia communications KW - Communication, Mobile N1 - Contents: PART I IMS ARCHITECTURE AND C ER -