Simon Millard Professional Services Manager Aculab – booth 402 The State of SIP.
Ian Colville Product Manager Aculab plc ian.colville@aculab +44 (0)1908 273 923
description
Transcript of Ian Colville Product Manager Aculab plc ian.colville@aculab +44 (0)1908 273 923
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Ian ColvilleProduct Manager
Aculab [email protected]
+44 (0)1908 273 923
VoIP without DSPs: challenges and opportunities
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Agenda
An epiphany moment How’d 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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There’s nothing like a good idea
Sometime, somewhere…
Someone had a thought along the lines of, “In an all-IP environment I don’t 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 PC’s 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
Let’s 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
It’s 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
Here’s an example of VoIP without DSPs Cisco CallManager VoIP telephone system
replaced old TDM system Educational complex with its own hotel 4 separate campuses; >500 extensions Voicemail features didn’t meet customer’s
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?
Haben Sie irgendwelche
Fragen?
Have you any questions?
Vous a n'importe quelles
questions ?
Heb u enig vragen?
Le tiene cualquiera pregunta?
L'ha qualunque domande?
Имейте Вас любые вопросы?
Czy maja Panstwo jakies pytania?
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 might’ve 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 IanAnd I’ll say you’ve been a great audience
THANK YOU!
See Aculab on stand [email protected]
+44 (0)1908 273 923