Enabling technology choices for application developers

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Enabling technology choices for application
developers

• Mike Donoghue, VP Sales
• Aculab

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Enabling technology choices agenda

• Legacy solutions
• Todays choices
• Host CPU-based media processing
• Open source
• Proprietary
• DSP-based media processing
• PCI, cPCI, PCIe
• API choices
• VXML, MSML
• Proprietary
• The best fit for your applications

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Legacy solutions hardware

• Since 1996, most enabling technologies for VoIP
  were based on DSP platforms
• Most with optional TDM interfaces
• Mostly fixed functionality
• DSPs were required to support complex transcoding
  capability
• DSPs were required to meet scalability targets
• DSP designs were required to ensure QoS
• Evolved to SIP-based call control

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Legacy solutions software

• The VoIP industry has never agreed on a
  programming standard
• Vendors have traditionally offered proprietary
  APIs in support of their signalling and media
  processing solutions
• High and low level interfaces
• Differentiation
• Offers differentiation but makes it difficult to
  evolve applications and use best-of-breed
  technologies from other vendors

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Legacy solutions platforms/OS

• Most legacy VoIP solutions are based on standard
  platforms
• PCI
• cPCI
• Intel, AMD and Sun processors
• Windows, Linux, SPARC Solaris

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Todays solutions

• With the increasing power of the host CPU,
  increasingly inexpensive bandwidth, together with
  more efficient codecs, application developers
  have more enabling technology choices than ever
  before
• The key is to choose the solution that fits the
  application
• How do you manage system growth?
• How do you allow for feature enhancements?
• FMC, video, SIP, etc.

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Todays solutions host media processing (HMP)

• An increasingly popular choice for VoIP enabling
  technology is media processing that utilizes the
  host CPU instead of specialized DSP cards why?
• Cost 10s instead of 100s per channel
• Scalability easy granular expansion
• Reliability no single point of failure
• Open standards-based
• Moores law provides a bright future

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Todays solutions host media processing (HMP)

• Developers can now choose between open source and
  proprietary host media processing
• Open source solutions carry no licensing costs
• Open source solutions benefit from the
  improvements of a diverse community of developers
  
• Open source solutions do not always offer timely
  support
• Open source solutions do not allow for unique,
  defensible features
• Improvements to the open source media processing
  become available to the entire user community

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Todays solutions host media processing (HMP)

• Proprietary HMP solutions are fully supported by
  the enabling technology vendor
• Vendors may offer features that allow application
  developers to differentiate their solutions
• Proprietary HMP solutions are more expensive than
  open source solutions
• Commercial opportunities are a guide for the
  feature roadmap

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Todays choices DSP resource boards

• DSP resource boards remain a solid choice for
  applications with complex requirements including
• Dynamic feature mix
• Messaging, conferencing, fax, advanced call
  progress detection
• High density in a small footprint
• The latest DSP-based media processing cards offer
  1000s of resources in a single server
• Ideal for edge devices and all-in-one solutions
• TDM/IP functionality in one expansion slot

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Todays choices DSP resource cards

• Todays DSP resource cards support application
  requirements offering a wide set of standard
  backplane designs
• PCI
• cPCI
• PCIe
• ATCA

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Todays choices API choices

• Up until recently, VoIP application developers
  had no choice but to work with a vendors
  proprietary API
• This helped early developers build highly
  effective solutions
• Locked in the particular vendor
• It was very difficult, if not impossible, to
  reuse code when changing enabling technology
  vendors
• This led many application developers to build a
  vendor independent abstraction layer

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Todays solutions API choices

• The development and acceptance of standard
  programming interfaces is unprecedented in the
  industry
• Driven by the application developers reluctance
  to be tied to one vendor
• Driven by users insistence on standards
• VXML
• MSML
• Others

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Todays solutions API choices

• However, proprietary APIs still have their
  advantages
• The ability to utilize the vendors competitive
  differentiation
• The ability to influence the timing of new
  features by exerting commercial pressure
• Vendors generally do a better job supporting
  their own products

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Todays choices

• The good news is that you can have it all!
• Choose either HMP or DSP technology, with similar
  capabilities and programming interfaces, for your
  solutions
• You choose the right solution for your
  application
• Your applications do not have to change
• Choose enabling technology that supports both
  standards-based and proprietary APIs
• MSML e.g., for conferencing
• VXML e.g., for IVR
• MRCP e.g., for speech recognition
• Proprietary for fax, video, and advanced call
  progress

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The best choices are the ones that work for you!
Recording
Playback
Conferencing
Transcoding
Media processing
Live speaker detection
Voice morphing
DTMF handling
Echo cancellation
CNG
Pulse/rotary detection
VAD
AGC
Special tones detection
Signalling and control
SIP/SDP
RTCP
SNMP
MRCP
H.323
RTP
Media layer
Secure RTP
Packet forking
PLC
Jitter buffer
G.711(I II)
G.723.1A
G.726
G.728
G.729AB
Voice codecs
GSM-FR
GSM-EFR
AMR-NB
EVRC
MS-GSM
IMA ADPCM
iLBC
SMV
OKI ADPCM
T.30 relay
T.37
T.38
T.30 ?T.38 gateway
Fax
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Distributed architecture
Software, distributed amongst several servers,
can act as one solution
Contact centre solution
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Enabling technology directions

• IP video solutions
• Mobile video solutions
• Video gateways
• Transcoding
• Transizing

• High availability, high service continuity
• Better user experience and high quality voice

Media Processing

• Wide band codecs
• IMS
• 3G

• Secure RTP
• SIPS
• TLS

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Enabling technology choices

• Developers have more, and better, enabling
  technology choices than ever before
• Developers and users insistence on standards
  has resulted in more standards than ever before
• Find the best fit for your applications and
  target customer base
• IT Expo is the perfect place to find todays
  solutions

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Thank you!Mike Donoghuemichael.donoghue_at_aculab.
comSee us on booth 1217