01251nas 22004453a 450 99620467410331620181031053234.42161-8690(OCoLC)60622261(CKB)954921361470(CONSER)--2011200686(MiAaPQ)42191(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.621JOURNAL996204674103316Telephony2209558UNISA