MP3 / MD740 Strategy & Information Systems Dec. 8, 2004 Telecom Technology, Value Chain, & Strategic Alignment.

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Presentation transcript:

MP3 / MD740 Strategy & Information Systems Dec. 8, 2004 Telecom Technology, Value Chain, & Strategic Alignment

Issues Covered Telecommunications –How the Internet Works –Telecom markets –RBOCs, Cable, CLECs, VoIP, and more Technology, Value Chain, and Strategic Alignment –Case Study: Inditex / Zara

Network Interconnections dial-in users (56.6 Kbps) dorm users class/office users dorm LANoffice LANmodem pool web server www2.bc.edu BC Campus Network Backbone ( 10 Mbps) (IP #s xxx.xxx domain) Internet Leased Line through our ISPs ( 45 Mbps / T3) The Internet local ISP microsoft.com whitehouse.gov wireless R R

TCP/IP TCP/IP - the Internet’s common language TCP - Transmission Control Protocol. Breaks up transmissions ( messages, web pages, etc.) into packets of no more than about 1500 characters each, checks the integrity of incoming packets, and reassembles packets on the other end IP - Internet Protocol. Routes packets.

Packet Traffic What’s in a packet? –source address –destination address –error checking (checksum) –time to live –options (timestamp, record route, etc.) –your data!

A Packet Switched Network at Work message: Prof. Gallaugher, I just wanted to let you know that I got a job based on the stuff I learned in your class... packet1 packet2 packet3 message: Prof. Gallaugher, I just wanted to let you know... packet2 packet1 packet3 packet1 packet2 packet3 packet2 packet3 R R R R R R= router

US Internet Infrastructure

Circuit vs. IP Telephony Circuit Switching Internet VoIP (e.g. Vonage, AT&T CallVantage, Skype) Private Network VoIP (e.g. corporate VoIP, Qwest) Guaranteed QoS (quality of service) packets over the Internet, variable QoS packets over private network, improved QoS The Internet Private IP Network

Words from the Powerful VoIP is the most significant paradigm shift in the entire history of modern communications since the invention of the telephone. Employees ask me what I’m most excited about and I tell them Voice over the Internet. It is going to be a really big deal for us. FCC Chair Michael Powell Time Warner CEO Richard Parsons

Zara Design Group Zara Warehouse