IP TELEPHONY AT THE AUSTRALIAN CATHOLIC UNIVERSITY A CASE STUDY. WIL DANIELS MANAGER, INFORMATION TECHNOLOGY SERVICES. Established 1991. Public University, Federal Funding. 10,000 Students. 1,000 staff. 6 Campuses. HISTORY of the University.
A CASE STUDY
MANAGER, INFORMATION TECHNOLOGY SERVICES
Public University, Federal Funding
HISTORY of the University
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.
HISTORY ACU Data Network
(Pre: IP Telephony)
Inter campus calls via standard phone number.
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
HISTORY ACU Voice Network
(Pre: IP Telephony)
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.
Key Factors for Reviewing Voice Strategy
of ACU Data and Voice network.
Catalyst for Change
34M Microwave to AARNET.
ATM WAN Transport.
Private ACU ISDN network decommissioned.
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.
Data Network Upgrade
PABX with VoIP trunking.
- (Review of the CSIRO experience)
Voice Strategy Options
Long distance telephone traffic to major Australian capital citiesvia VoIP over AARNet
Local area calls transferred from AARNet to CSIRO PABX, thenswitched to local PSTN
6,000 calls per working day
90% saving on call charges
Voice quality is high
Review of CSIRO Experience
Leverage of LAN/WAN investment
In house Adds/Moves/Changes
Platform for future services.
Confidence from CSIRO experience.
ACU IP Telephony Decision Criteria
1000 IP handsets . Cisco 7960
12 x Call Managers.
6 x Cisco 3640 ISDN Gateways
ACU IP Telephony Solution
End-to-End IP Telephony with Application Enablement
- Number Portability
- PSTN Access/Numbering
- Service Transparency
IP Telephony Design Considerations
- Layer 2/Layer 3
- Least Cost Routing
- Codec Selection
Voice Mail and Analog Device Support (Fax).
Contingency and Management
ACU IP Telephony Implementation Issues
- 100 Handsets.
- Library Pilot Group
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.
ACU IP Telephony Implementation History
Interface to Corporate address book, point & click dialing
Provides one stop interface to voice mail and email
Provides easy roaming facilities
STRATEGIC BUSINESS ADVANTAGES OF VoIP
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 competitivevoice tariffs
Peter Cox, AVVID Systems Engineer, CISCO
Graeme Allen, Consulting Systems Engineer, CISCO