Tuesday, 28 February 2012

Myths and legends – cloud myths #1

Zeus
Myths and legends make great stories. They can make great movies – if the director is up to it. In more mundane circumstances, they’re often similarly used as a metaphor. In terms of cloud computing, some myths are considered as incontrovertible as the Instructions of Shuruppak, by which is meant – it is tantamount to a fact that this is a myth.

Myth as myth
One of those mythical statements is; “the public cloud is the most inexpensive way to procure IT services.”

Companies who promulgate this style of myth often do so for their own ends and begin by freely conceding that, yes indeed, a characteristic of the public cloud is a relatively inexpensive ‘pay-as-you-use’ model, before proceeding to ‘bust the myth’ – on their terms.

Friday, 10 February 2012

The evolutional path of media processing systems



From hardware based....to software based....to cloud based
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. Interfaces at the E1/T1 level to TDM systems and IP connectivity for VoIP deployments were also a necessity. Media processing boards such as Aculab’s Prosody X range were designed with all these requirements in mind, and continue to form the basis of many different types of telephony server.