9-1-1 and VoIP : field hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Ninth Congress, first session, September 1, 2005

• Record Nr.: UNINA9910694155603321
• Descrizione fisica: 1 online resource (iii, 44 p.)
• Soggetti: Telephone - United States - Emergency reporting systems; Emergency communication systems - United States; Internet telephony - United States; Computer network protocols - United States
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia