01220nas 22004333a 450 991014464470332120230518213020.02161-8690(OCoLC)60622261(CKB)954921361470(CONSER)--2011200686(EXLCZ)9995492136147020050614b19932009 --- aengurun|||||||||txtrdacontentcrdamediacrrdacarrierTelephonyNew York, N.Y. Penton MediaChicago, U.S.A. Chambers-McMeal Covolumes illustrations ;31 cmBeginning in 1990 one issue per month called: Global telephony.Imprint varies.0040-2656 Global telephonyTELEPHONY FOR TODAYS COMPETING NETWORK MARKETTelephonePeriodicalsTelephonefast(OCoLC)fst01146231TelefoniegttPeriodicals.fastTelephoneTelephone.Telefonie.621JOURNAL9910144644703321Telephony2209558UNINA