Telecom Systems, PSTN, PBX, Datacom, IP Telephony, IPTV, Wireless and Billing
Brand: Althos (9780972805391)
Brand: Althos (9780972805391)
Brand: Academic Press (9780123785961 / 177467)
Brand: No Starch Press (9781593271770)
Brand: Computing McgrawHill (9780079117335)
(9780071829236 / 37043578)
Brand: McGrawHill Companies (9780072130898)
Brand: Springer (9780387946627)
Broadway Business (9780385520812 / 9780385520812)