1 / 27

Mobility and the Future of Integrated Communication Strategies

Mobility and the Future of Integrated Communication Strategies. Mike Staman – Macon State Jim Jokl – University of Virginia EDUCAUSE 2003. What are Integrated Communication Services (ICS)?. Many definitions over the years Financial perspective

jena
Télécharger la présentation

Mobility and the Future of Integrated Communication Strategies

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mobility and the Future of Integrated Communication Strategies Mike Staman – Macon State Jim Jokl – University of Virginia EDUCAUSE 2003

  2. What are Integrated Communication Services (ICS)? • Many definitions over the years • Financial perspective • Lets run our telephone system over the data network • Voice over IP (VoIP) • Can’t we also run video over the data network? • H.323, MPEG, Real Networks, Quicktime, etc • Services perspective • Can we link our voice mail and email? • Unified Messaging products • Can videoconferencing enhance productivity / avoid travel? • What are the new “killer applications”?

  3. What are Integrated Communication Services (ICS)? • Technology perspective • What services should we deploy for our users? • How do I keep my school from falling behind? • “They” are doing wireless, so we should be too • Should we deploy Skinny or SIP or H.323 for VoIP? • What are the implications for the campus network? • Basic question • How do we keep up with growing user expectations? • Especially hard in the current fiscal environment

  4. User Expectation Trends • Access many services from one workstation • Access the same services from many devices • Location independence • Wired office network connection • At a wired network café • On the wireless LAN • In a home office • Out of town

  5. A refined vision for ICS: Support for Nomadic Computing • Access to voice, data, and video communications applications via device, location, transport, and media independent mechanisms • Implies services such as locating a person via one of many devices, at any location, originating ID portability, integrated or find-me messaging, authentication and privacy, etc

  6. Today’s Agenda • We’ll discuss some of the implications of meeting these user expectations • Technical issues • Financial model changes • Policy and organizational aspects • Service examples and planned projects

  7. Technical Implicationsfor the wired campus network • A stable cable plant and database • 10/100 switched Ethernet • A high-capacity network backbone • Provisions for end-to-end management • QoS support • Multicast support • A wiring closet UPS infrastructure • Backup power is for more than just E-911

  8. Technical Implications for the wireless campus network • Existing applications use 802.11b • Insufficient even for the near term • Performance inadequate – 11 Mbps best case • Shared network • Security issues • Poor access control • Lack of available channels (spectrum) • 802.11G helps - compatible with 802.11b • Up to 54 Mbps • Still a shared network in same 2.4 GHz band

  9. Technical Implications for the wireless campus network • Fortunately wireless equipment also takes advantage of Moore’s Law • 802.11n • 100+ Mbps in the 2005/06 time frame • Wireless PANs • Bluetooth: 30 feet, 64 kbps to 1 Mbps • 802.15.3: up to 55 Mbps, multimedia capable • Coexist with 802.11b/g in 2.4 GHz band

  10. Technical Implications for the wireless campus network • Wireless VLANs & QoS • Traffic isolation, support for voice applications • What about 802.11a • Many channels – operates in 5.8 GHz band • Cost coming down; support for b/a/g cards • Vivato-type technology • Phased-array antenna directs radio energy where it is needed

  11. Technical Implicationsfor remote network access • How do we enable the nomadic concept for off-campus students and faculty? • Is this really just plain old telecommuting? • Many campuses have been successful implementing network peering relationships with ISPs • Lease copper and install private DSL? • Leverage next generation of wireless technology?

  12. Technical Implicationsfor Wireless Metro Area Networks • 802.16a WiMAX • The next big thing in wireless space? • Licensed and unlicensed operation • Unlicensed in the 5.2 GHz and 5.8 GHz bands • Near line of sight • Up to 30 miles and 70 Mbps • Will perform well with wide range of packet sizes • Large investments by Intel, others • Mid-2004 for products

  13. Technical Implications for Cellular Device Integration • User’s desire • Voicemail, paging, and messaging integration • Desk phone calls to reach their mobile device • “Wireless Office” functionality • Feature transparency & integration • No per-minute charges for on-campus use • Wide area coverage • Personal use enabled • Two numbers, call tagging, etc?

  14. Technical Implications for Cellular Device Integration • Integration with campus WLAN • Some new cell phones support 802.11b VoIP • Relationships with carriers essential • Colorado State, Virginia, others working on procurements in this area • Integration with campus LAN • Bluetooth phones for remote data network access

  15. An Interesting Wireless Integrated Solution: Vocera • 802.11b WLAN badge • Voice recognition activated • Integrated services • Voice over WLAN • 2-way telephony integration • Voicemail • Audio email • Text messaging • Group broadcast • User location feature

  16. Wireless Impediment: Security • Security problems can devastate a campus wireless LAN • Wireless has low capacity and is a shared media • Wireless QoS is in its infancy • You often can’t shut down an offending computer • Rogue access points • Ad-hoc mode • Poor vendor security architectures • Need a security model that spans network transport

  17. Wireless Access Control and Data Privacy • Common mechanisms • VPN, LEAP, EAP-TLS, PEAP, etc • Vernier, Bluesocket, etc • Remember limitations of special devices • PDAs, cell phones, VoIP phones, Vocera badges • Design infrastructure to support many mechanisms

  18. Will we do a lot of planning only to be overtaken by events? • In which multimedia transport should you invest? • Cisco’s skinny VoIP protocol • H.323 • Wait for SIP to be deployable on a large scale? • What about Skype?

  19. Skype • A peer-to-peer system for Internet telephony • From the people who developed KaZaA • Designed to work in the presence of firewalls, NAT, PAT • All traffic is encrypted and better voice quality • Technical implications • Network infrastructure needs are similar • but P2P applications are harder to support

  20. Some Financial, Organizational and Policy Implications to Consider • A fundamental change in user relationships? • We already consider the whole student experience • Can we strengthen it further with new technology? • Retain their interest better after graduation? • Is the technology about to make this possible for faculty and staff? • How are you organized? • Voice, data, video integrated? • Cell phones in purchasing? • Support as network complexity continues to grow

  21. Some Financial, Organizational and Policy Implications to Consider • Do you recover costs for the right services? • Typical schools charge for items such as • Telephone • Network jack • Backbone • Internet capacity • Monthly cell phone and airtime minutes • Wireless LAN service • Remote access • Cable television

  22. Some Financial, Organizational and Policy Implications to Consider • Do voice recoveries help pay for LAN or wireless • What about Skype or Windows messenger? • Current cost recovery practices are often a disincentive for Nomadic Computing • We want users to have their phone number everywhere • Wireless devices, cell phones, desk phones, soft phones, telecommuting, etc • Enabling personal use should be a goal • Money can be saved by both the school and the individual

  23. Some Financial, Organizational and Policy Implications to Consider • An alternate financial model: might per-person cost recovery work? • Fund a basket of basic infrastructure services • Automatically scales like per-device charges • No disincentives for multi-device nomadic users • Use financial motivators to limit excess consumption • One-time charges for expensive phones, software licenses, items such as Vocera badges, etc? • Normal billing for excess needs such as large numbers of network jacks, high Internet capacity, etc?

  24. Some Financial, Organizational and Policy Implications to Consider • Many possible financial alternatives • Focus on overhead-type funding? • Per-user instead of per-device charges? • Continue with per-device charges? • Ensure that charges reflect the true cost of a service • Avoids providing a financial incentive for users to do the wrong thing over the long run

  25. Coming Events • What is next for the ICS Group • ECAR Project • Research report on Integrated Communications in Higher Education • Future Meetings • Changes in standard meeting schedules

  26. Is your campus working in these areas or is it an interest of yours? • Consider joining the ICS working group • http://www.educause.edu/netatedu/groups/ics • Next meeting – Tempe AZ - February • Topic

  27. Krystal Bullers Douglas Carlson Michael J. Enyeart Mark Katsouros Holly King Christopher Peabody Steve H. Updegrove Jose J. Valdes, Jr Wendy Wigen Thank You • Questions and discussion Special thanks to the ICS Steering Committee

More Related