1. IP TELEPHONY AT THE AUSTRALIAN CATHOLIC UNIVERSITY A CASE STUDY WIL DANIELS MANAGER, INFORMATION TECHNOLOGY SERVICES

2. Established 1991 Public University, Federal Funding 10,000 Students 1,000 staff 6 Campuses HISTORY of the University

3. HISTORY ACU Data Network (Pre: IP Telephony) Yr 1993 - Campus wide networks. Bridged 10base 2 LAN. Inter-State Campuses interconnected via 64K ISDN to AARNET. Mixed IPX TCP/IP network. Yr 1995 - Campus LAN upgrades. Switched 10mb Ethernet core. Ethernet Cat5 Hubs at edge. Meshed Private 64K ISDN/Frame Relay connecting Inter-State Campuses, Standardisation on TCP/IP, NT. Yr 1997 - Lotus Notes, ISDN Video Conferencing Yr 1991 - No campus wide networks. Individual office networks. 10base 2 LAN, No WAN, IPX based networks.

4. Yr 1991 - Individual Campus based Key and PABX systems. Inter campus calls via standard phone number. HISTORY ACU Voice Network (Pre: IP Telephony) Yr 1993 - All ACU sites integrated via Telstra Spectrum. Unique telephone number plan for each campus. 4 digit number plan. Yr 1998 - Introduction of Repartee Voice Mail and integration with Telstra Spectrum. Review of ACU Voice Strategy

5. Approx $1.8million per annum on Voice with Telstra. Key Factors for Reviewing Voice Strategy 80% of voice traffic is inter-campus with 65% STD. Ongoing problems with billing. Difficulty in maintaining accurate Phone Directory information. Long Add/Move/Change Lead times.

6. $2.4m DEETYA Grant for Network Infrastructure upgrade of ACU Data and Voice network. Catalyst for Change 1998

7. Data Network Upgrade Yr 2000 - WAN 34M Microwave to AARNET. ATM WAN Transport. Private ACU ISDN network decommissioned. - LAN Gigabit Ethernet Core 10/100M to the desktop Cisco Works NMS Yr 1999 - RFPs issued for WAN and LAN components Selection of Vendors ATI and CISCO.

8. Private PABX network with Switched Permanent Circuits. Voice Strategy Options PABX with VoIP trunking. - (Review of the CSIRO experience) IP Telephony

9. Long distance telephone traffic to major Australian capital cities via VoIP over AARNet Review of CSIRO Experience Local area calls transferred from AARNet to CSIRO PABX, then switched to local PSTN 6,000 calls per working day 90% saving on call charges Voice quality is high

10. Forecasted Cost savings of approx 600K per annum ACU IP Telephony Decision Criteria Leverage of LAN/WAN investment In house Adds/Moves/Changes Platform for future services. Confidence from CSIRO experience.

11. CISCO AVVID solution. Total cost $634,000 ACU IP Telephony Solution 1000 IP handsets. Cisco 7960 12 x Call Managers. 6 x Cisco 3640 ISDN Gateways CallManager End-to-End IP Telephony with Application Enablement Router/GW IP WAN

12. Migration from Spectrum to IP Telephony - Number Portability - PSTN Access/Numbering - Service Transparency ACU IP Telephony Implementation Issues IP Telephony Design Considerations - Layer 2/Layer 3 - QoS - Least Cost Routing - Codec Selection Voice Mail and Analog Device Support (Fax). Contingency and Management

13. Pilot - 3 months Dec 99 to March 2001 - 100 Handsets. - Library Pilot Group ACU IP Telephony Implementation History Full rollout - March 2001 - 1000 handsets - Parallel IP Telephony and Spectrum systems. Staff Training - May 2001. Unity Voice Mail Rollout and Integration - May 2001 Full Replacement of Spectrum System with IP Telephony.

15. STRATEGIC BUSINESS ADVANTAGES OF VoIP VoIP technology can provide cost savings Interface to Corporate address book, point & click dialing Provides one stop interface to voice mail and email Provides easy roaming facilities

16. Caveats Integration issues with some legacy Analogue equipment. QoS issues must be identified and carefully designed for. IP Telephony requires a major redesign of network infrastructure Current network staff can support VoIP installation Displacement of STD and ISD calls is key to savings Payback periods are changing as carriers offer more competitive voice tariffs

17. ACKNOWLEDGEMENTS Stephen Kingham, Project Manager and Consulting Engineer, IT CSIROPeter Cox, AVVID Systems Engineer, CISCO Graeme Allen, Consulting Systems Engineer, CISCOAARNET staffCISCO staff