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TELEPHONY

TELEPHONY. Telephony - PSTN. Public Switched Telephone Network 100 years 1982 AT&T monopoly broken Competition entered telephony Car phones system Cellular system Satellite system VoIP Wifi. Telephony - VoIP. Voice over the Internet Protocol (IP) Vonage A viable service

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TELEPHONY

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  1. TELEPHONY

  2. Telephony - PSTN • Public Switched Telephone Network • 100 years • 1982 AT&T monopoly broken • Competition entered telephony • Car phones system • Cellular system • Satellite system • VoIP • Wifi

  3. Telephony - VoIP • Voice over the Internet Protocol (IP) • Vonage • A viable service • Being attacked by at@t, Verizon, others • Sun Rocket • went broke 2007 • Ooma (just introduced Thursday last week) • Verizon • at&t

  4. VoIP • What do you need for equipment? • regular telephones • ATA (analog terminal adapter) • Broadband connection to the Internet • Modem • Cable • DSL • Satellite • Computer • Skype • Softphone

  5. IP • Internet Protocol used to transport • Data • Voice • Images, include today – TV called (IPTV) • Electrical signals • Chopped up into chunks • Converted to binary (zeroes and ones) • Packaged as frames of bits • Delivered over media using the Internet Protocol

  6. IP packets (frames) • Data • Voice • Voice over IP (VoIP) • Image • TV over IP (IPTV) • Fax over ip (FoIP) • Soon • Cellular systems could use VoIP

  7. Cellular System • Protocols not yet IP • GSM (becoming world standard) • CDMA • EV DO • PCS • Iden • others • Capabilities • Telephone • Internet Access • Text Messaging • Music • Calendars • Pda • Watch movies

  8. iPhone • Telephone • Cellular • WiFi • Internet • Internet Access • Text Messaging • Music • Calendars • Pda • Watch movies

  9. COMMUNICATIONS • All of this boils down to communications • Increase availability to all • Work productivity • Emergency assistance • Bottom line CONVIENENCE • What is next?

  10. END

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