Camp, Ken, IP telephony demystified / Ken Camp - xv, 254 páginas : ilustraciones - McGraw-Hill networking . - McGraw-Hill networking professional . ISBN: 0071406700 (papel alcalino) Subjects--Topical Terms: Telefonía por internet LC Class. No.: TK5105.8865 / C35 Dewey Class. No.: 621.382/12