Ian Colville

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(No Transcript)
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• Ian Colville
• Product Manager
• Aculab plc
• ian.colville_at_aculab.com
• 44 (0)1908 273 923

VoIP without DSPs challenges and opportunities
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Agenda

• An epiphany moment
• Howd ya do VoIP without DSPs?
• Some of the benefits
• The issues and challenges
• Where can you use it?
• A mini case study
• Questions
• Summary

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My job for the next 20 minutes

• Keep you awake and engaged
• Provide an educational and fun experience
• Maintain non-commercialism
• Pass on some thought provoking tips centred
  around the challenges and opportunities arising
  from VoIP without DSPs

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Theres nothing like a good idea

• Sometime, somewhere
• Someone had a thought along the lines of, In an
  all-IP environment I dont need a T1, so is there
  still a need for a DSP board?
• At this epiphany moment, he thought unto himself,
  There is another way!

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Or as Nostradamus put it

• In the bright millennium in the house of greatest
  power
• With a blinding flash that is not obscure
• He will realise no need for T1s

• And can resources run on any PC tower

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What do we mean VoIP without DSPs?

• DSPs run firmware that performs media processing
• Functions are essential for telephony systems
• Software-based media processing resource
  functions are an alternative
• Software that runs on a host PCs CPU
• Alongside the application
• Instead of firmware running on dedicated DSP
  resource boards

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What do these resources do?
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How to implement VoIP without DSPs
Lets get to the heart of the matter
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Benefits of this approach

• Terrific idea for trial or development systems
• Speeds time to market
• Cost-effective for small-scale VoIP e.g., SMEs
• Reduces total cost of ownership
• Wide choice of platforms
• No-brainer network connectivity
• Can be offered as a package with SIP or H.323

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Issues and challenges

• Toasting the host

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Issues and challenges

• Its not the speed
• The application
• Codec selection
• Delay/latency

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Issues and challenges

• Some functions are better suited to DSPs
• Echo cancellation
• Conferencing

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Issues and challenges

• Licensing
• Upgrades/scaling up
• Support costs
• Total cost of ownership

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Issues and challenges

• Functionality
• Channel count
• Small-scale systems
• The nature of the application
• Telco-grade

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Where can you use DSP-less VoIP?

• Small-scale IVR, voicemail
• IP PBX for SMEs
• High channel broadcast/announcements
• Try it out on telco-grade servers or Blades

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Mini case study

• Heres an example of VoIP without DSPs
• Cisco CallManager VoIP telephone system replaced
  old TDM system
• Educational complex with its own hotel
• 4 separate campuses gt500 extensions
• Voicemail features didnt meet customers needs

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Mini case study

• DSP-less VoIP for enhanced voicemail
• Standard H.323 interface
• Unlimited amount of voicemail boxes and messages
• Several add-on features compared to standard
  voicemails e.g., mobile phone voicemail box,
  automated attendant, information boxes, email
  forwarding (WAV file), browser-based user
  interface, IVR, etc.

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The opportunities realised

• No extra hardware costs for interface or
  resources
• Easy integration process
• Hybrid solutions possible
• Various PBXs and VoIP solutions served by same
  voicemail/ IVR
• Implementation costs are low
• Easy to implement, tailor, upgrade and update
• Delivery costs are modest

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Any questions?
Czy maja Panstwo jakies pytania?
Have you any questions?
?????? ??? ????? ????????
Vous a n'importe quelles questions ?
Heb u enig vragen?
L'ha qualunque domande?
Haben Sie irgendwelche Fragen?
Le tiene cualquiera pregunta?
Have you any questions?
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In summary

• Speeds time to market
• Cost-effective for small-scale VoIP e.g., SMEs
• Reduces total cost of ownership
• No extra hardware costs for interface or
  resources
• Easy to implement, tailor, upgrade and update
• Wide choice of platforms
• Blade Server is an option

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Or, as Nostradamus mightve said

• In the halcyon days of adventurous voice over IP
• Great systems will be constructed
• IVR and VM1 will demand resources
• And they shall be found without a DSP

1 Voicemail
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• You can call me Ian
• And Ill say youve been a great audience
• THANK YOU!
• See Aculab on stand 515
• ian.colville_at_aculab.com
• 44 (0)1908 273 923