How to construct world-class VoIP applications on next generation hardware

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(No Transcript)
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How to construct world-class VoIP applications on
next generation hardware
David Duffett, Aculab
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Agenda for our time together

• What is next generation hardware?
• How is next generation hardware different?
• Architectural overview
• What makes a world-class application?
• Example applications

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What is next generation hardware?
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Technology and product coverage
Media processing resources
Circuit switched connectivity
Media processing (with TDM)
TDM (E1/T1) cards
Media processing cards
Next generation
HMP
IP telephony cards (with TDM)
IP telephony cards
IP telephony
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Where does next generation hardware fit?
Functionality
Next generation
Telcos and large enterprises - thousands of
channels per server
Existing hardware
Service providers and enterprises - hundreds of
channels per server
Software solutions
Small to medium sized enterprises - 2 to 120
channels per server
Size of deployment
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How is next generation hardware different?
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What has to change?

• Improved value per channel
• Configurable modular technology
• All functions of todays products in a single
  product line
• Higher density

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What has to stay?

• Same application programming interface (API)
• Same telecoms approvals
• Same protocol coverage
• Same operating system coverage

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Categorisation

• Software
• Small to medium sized applications
• Core media processing functions
• Hardware
• Medium to high density applications
• Features include speech/data/fax
• Next generation hardware
• Very high density applications
• Extremely well featured
• IP

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Channel counts
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The opportunities are there

• Displace higher density legacy solutions
• Use the latest DSP technology
• Integrate TDM, IP and speech/data/fax in a single
  product
• Create product variants to suit different
  deployments

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A profile of next generation solutions

• Base cards
• PCI, PCIe
• cPCI
• ATCA
• New DSPs that support
• Range of speech codecs
• Fax and data algorithms

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A profile of next generation solutions

• A beating heart of IP with TDM as an option
• Modularity provides flexibility and scalability
• Common powerful DSPs can run all key functions

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A profile of next generation solutions

• Separate mix and match building blocks for
• Circuit switched connectivity e.g. E1/T1/J1/T3
• IP packet switched connectivity redundant
  Ethernet
• Choice of different format base cards
• Record, playback, ASR, SVI, TTS, conferencing,
  echo cancellation, DTMF generation/detection
• Data communications fax, modems
• All functionality contained under existing API
  structure

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Architectural overview
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Architectural overview

• Run through the architecture explaining
• Whats been done
• Why its been done
• Why its a leap forward from current hardware
  products

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Next generation component architecture
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Architecture media processing
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Architecture media processing

• Complete change in DSP family
• Evaluation of leading DSPs on market today
• Excellent DSP for converged communications
• 20 to 30 times faster than existing DSPs
• Opens new possibilities for enhanced
  functionality and greater density
• Same API
• IP controlled under the hood

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Architecture media processing

• Each device can run a combination of
• Speech (e.g. play/record, echo cancellation,
  conferencing)
• Codecs (e.g. ?-law, G.729)
• Datacomms (e.g. V.17, V.34)
• Fax (e.g. T.30, T.37, T.38)
• VoIP requirements (e.g. de-jitter)
• All this should be controlled by the existing API
• Fits into your existing applications

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Next generation component architecture
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Architecture TDM call control
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Architecture TDM call control

• Modular architecture
• Greater density but with all existing protocols
• Plug-in module for TDM connectivity
• Used across the product range
• Up to 16 PRI on a single daughter card
• Mix supported protocols on different TDM trunks
• Ability to change protocols on hot system
• Same API
• IP controlled under the hood

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Next generation component architecture
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Architecture TDM switch control
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Architecture TDM switch control

• Switch control
• Business as usual
• Local switching on card
• Access to H.100, H.110 etc. for inter-card
  connection
• Same API as before
• IP controlled under the hood

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Next generation component architecture
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Architecture IP control
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Architecture IP control

• What does it mean?
• All data traffic between the host and the card is
  passed in IP packets
• Control local cards direct over PCI
• Control remote cards over PCI and Ethernet

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Architecture IP control

• IP control over PCI
• Data path still much the same for local control
• Standard MAC part and driver
• Card appears as another NIC
• Card has own network, with access points
• Host PCI MAC
• External Ethernet socket

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Architecture IP control

• IP control design decision means
• IP telephony is very efficient, as the card works
  in this way
• Leading vendors should already have H.323 and SIP
  stacks under their call control API
• Media gateway API allows other stacks control of
  resources
• Very straightforward access to IP telephony

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Architecture migration path
Application
API
Proprietary drivers
PCI
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What makes a world-class application?
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What makes a world-class application?

• Functionality
• Connectivity
• Reliability

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Functionality
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Connectivity to IP and TDM networks
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Reliability

• Components you can be sure of
• Chassis, host processor
• Next generation hardware
• Speech technology
• World-class technical support

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Example applications
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Application ideas

• Complex or high channel count conferencing
  systems
• Medium scale SS7 interconnected systems
• Displacement of higher density legacy solutions
• IP communications in IVR systems
• Complex speech platforms with ASR, SVI and TTS

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IVR using existing hardware
Inbound caller
IP
Hardware
NIC
NIC
PCI
PCI
CPU
CPU
CPU
TTS/ASR
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IVR using next generation
Inbound caller
IP
IP
Next gen.
NIC
NIC
PCI
CPU
CPU
PCI
CPU
TTS/ASR
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Any questions?
Quel questionnes?
Cuestiones?
Haben Sie etwa Fragen?
Any questions?
Quel questionnes?
Cuestiones?
Haben Sie etwa Fragen?
Cuestiones?
Any questions?
Haben Sie etwa Fragen?
Quel questionnes?
Cuestiones?
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Summary

• Next generation hardware IP by design
• Next generation hardware
• Higher density
• Richer media processing
• Easy migration
• Architectural overview
• The beating heart of IP

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Summary

• What makes a world-class application?
• Functionality
• Connectivity
• Reliability
• Example applications
• High density IVR
• SS7
• Talk to your favourite vendors

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Thank you
david.duffett_at_aculab.com See us at booth 202
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