Voice

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Voice Data Convergence

• Network Services
• January 11, 2001

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PSTN Public Switched Telephone Network

• Although the PSTN is effective and does a good
  job at what it was built to do (switch voice
  calls), many businesses are striving to change it
  to a new network whereby voice rides on top of a
  data network.

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Drawbacks to the PSTN

• Data has overtaken voice as the primary traffic
  on many networks built for voice.
• The PSTN cannot create and deploy features
  quickly enough. Only the venders of the
  equipment could develop the applications for that
  equipment.
• Data, Voice, Video cannot converge on the
  inflexible PSTN as currently built.
• Wasted bandwidth using a 64k connection.

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VoIP Voice over IP

• Provides an advanced digital communications
  network that bypasses the traditional public
  switched telephone system and uses the Internet
  to transmit voice communication.

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VoIP Signaling Protocol

• H.323 - ITU standard for transmitting audio video
  and data across an IP network.

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IP Telephony

• IP Telephony is the technology which allows for
  data, voice, and video to be transmitted over a
  single, IP based network infrastructure.

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IP Telephony Pilot Project

• In the 4th Q 2000, Network Services, in
  cooperation with Telecommunications and OIR have
  begun to implement IP Telephony on the UF campus.
  Ciscos AVVID (Architecture for Voice, Video and
  Integrated Data) family of products were chosen
  because of their scalability and availability in
  the current market.

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Key Benefits

• Lower Total Cost of Ownership
• reduced PSTN circuits
• reduced long distance
• reduced operational costs (MAC)
• unified MIS for voice data

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Key Benefits (contd)
Next generation business applications Unified
messaging integrated email, voice mail,
fax Web-Telephony Integration / CTI push / pull
technology telecommuting / tele-learning
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The Next Steps

• Rollout phones to test sites
• H.323 Gateway to PSTN
• Call Manager Clustering
• Unified Messaging

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Cisco IP Phone

• Model 7960
• Executive set
• 6 programmable line /feature
• 4 interactive soft keys
• Messages
• Directory
• Help
• Settings
• Services
• graphic capability

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Cisco Call Manager

• Administration
• phone / user setup
• features
• caller id
• call forwarding
• call park / hold
• DID / DOD
• Distinctive ring
• Call Detail Records
• Etc.

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VoIP Issues

• Call Management
• cost accounting
• cost modeling / production pricing
• admin policy
• dial plan

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VoIP Issues (continued)

• QoS
• bandwidth limitations
• Traffic Shaping (control the usage)
• delay
• jitter
• packet loss

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VoIP Issues (continued)

• Wireless Applications
• Open Interoperability
• standards development
• Security
• 911, E-911
• network
• policy

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Credits

• Cisco Systems, Inc.
• Telecommunications, UF.
• Network Services, UF

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