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From hardware based....to software based....to cloud

Early pioneers in the market initially known as computer telephony took a look at the typical office workstation and decided that efficiencies could be achieved by integrating the two pieces of electronics typically found on workers desks – the telephone and the personal computer. They started with a computer platform, and added a hardware board to it so that the integrated computer system could make and receive phone calls. 
 
The next step was to scale the system so that it was capable of handling tens, hundreds or even thousands of channels and could be centralised and integrated with the office PBX.  To achieve this, it was necessary to have telephony boards with dedicated DSPs to perform the telephony call processing, thus leaving the main processor on the server/PBX free to handle the application.
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This is part two of a set of articles describing the benefits of Aculab’s range of IP-centric Prosody X media processing boards for developers of large scale communications platforms.
In part one, it was stated that there are many advantages in having IP at the core of the Prosody X media processing board, not least of which is the high channel counts made possible by such an architecture. But that is just one aspect…

Choosing IP connectivity enables a distributed architecture

In putting IP technology at the heart of the Prosody X design it is much simpler, due to the ubiquity of Ethernet in IT networks, to build multi-board, multi-chassis and multi-location systems using Prosody X. So if the high channel counts of a single Prosody X board are not enough, then it is easy to build multi-board systems.

The traditional way

Before VoIP entered the telephony world, we depended on TDM technology and an array of disparate CAS and CCS type PSTN protocols, and most of the voice-based solutions had a common architecture, simply described as a host server with telephony boards.

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Vanilla cupcake topped with strawberry ganache www.thesweetkitchen.co.ukOur clever engineers have done it again – you’ve now got an even higher density, media processing board with which to play. The new PCIe board joins the Prosody X family of DSP-based boards that are used extensively in multimodal communications systems.

We could have just taken the existing 4-trunk Prosody X PCIe board and added further trunks and DSPs. Instead we took note of customer feedback and went the extra mile to further improve the original design. 

The result is a board with vastly increased channel capacities, giving our developer customers the components needed to readily craft large scale systems at a very cost-effective price-per-channel. Whilst many DSP boards top out at 240 channels, the new 8-port Prosody X PCIe board can support up to 720 channels.
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