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Grandstream GXP2100 4 line Desktop HD IP Telephone SIP PoE    US $99.00

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1 Line VoIP IP SIP Business Desktop Speaker Phone w LCD    US $49.00

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NEW Polycom SoundPoint IP 501 SIP Phone 3 Line IP VOIP Telephone Desktop IP501    US $165.99

VoIP Phone Systems – The Modest Desktop Phone Finally Plays Catch-Up

Communication is absolutely essential for any business, maintaining the flow of information and dialogue with clients and between departments. And this takes many forms – both written and verbal.

Written material progressed from hand delivered letters through the telegram and various other innovations through to ARPANET based collaborative messaging systems in the early 1970's and then finally to Internet based email in the 1980's.  Volumes have exploded and it has become an essential tool for virtually every business, driving collaboration, efficiency and innovation.

In parallel, since the invention of the telephone in the late 1800's, mobile telephony has transformed the ability of people to verbally communicate with each other, and smart mobiles have pulled together voice and data into incredibly powerful tools. But what of the modest desktop phone? Relative to the development of the internet and mobiles, the desktop phone has seemingly stood still.  Sure, the handsets look and work better, lines are clearer and more reliable. But for many businesses, the desktop phone is an isolated system, and a dated solution, less flexible even that the mobile that all employees will be carrying.

So what's next for the business desktop telephone?  The answer is a VoIP Phone System, using voice over internet protocol.  This is the transformation of voice over to a packet-switched data network – often the same network over which emails are run. This for the first time enables desktop phone and computer systems to properly inter-operate.  Incidentally, modern cellular systems also use packet based systems – so this really is a game of catch-up by the corporate telecoms systems.

The benefits of a VoIP Phone system are many-fold:

- Reduced costs: Due to the bandwidth efficiency and reduced costs that VoIP technology can deliver, businesses are gradually migrating from traditional PBX/ PSTN telephone systems to VoIP systems to reduce their monthly phone costs – particularly for multi-site businesses.

- Unified and mobile communications: Business VoIP solutions have now evolved into "unified communications" services, which treat all communications – phone calls, voice mail, faxes, e-mail, web conferences and more – as packetized discrete units that can all be delivered via any means and to any handset, including desktop phones, computer systems and mobile cellphones. This enables far greater mobility of staff, including efficient management of communications with Mobile Employees.

- Improved Integration: the packetized nature of VoIP systems means that they can interface with other business operational systems – for example with scheduling systems, resource management systems, billing systems, or for example with call centre systems.  This can deliver very considerable efficiency and productivity benefits.

- Reduced infrastructure: VoIP allows both voice and data communications to be run over a single unified network, which can significantly reduce the infrastructure costs. This cost reduction of often the most significant initial driver for the adoption of VoIP, notwithstanding that the benefits are far greater than simple cost reduction alone.

- Scalability: The architecture of VoIP systems makes them particularly scalable. The prices of extensions on VoIP are lower than for PBX and key systems.  The VoIP switches typically rely on standard interfaces and may run on commoditised hardware such as PCs or Linux based systems.

- Management and flexibility: VoIP systems typically use a web-based interface, and as a result the devices have simple, intuitive user interfaces which allow users to make simple system configuration changes – and in some cases from any browser, anywhere.

- Possible free calls: Whilst most business telecoms systems run IP to IP between sites – typically over SIP – but IP to public PSTN when going outside of the business, there are a number of services that have begun to cater to businesses, providing bulk flat rate or free-of-charge connections between any users on the same network or in the same area, and charging for connections to and from public PSTN phones outside.

VoIP is a revolution in the corporate communications market.  It represents the catch-up of the corporate phone system to email and mobile cellular, achieving significant cost, mobility and productivity savings.  And by unifying the communications systems together through a Systems Integrator, it unleashes the power of the corporate systems to deliver a hitherto unachievable system upgrade to better service the corporate and its clients.

About the Author

MintTec offers VoIP Phone Systems for small and medium businesses (SME). We supply, install and maintain, and provide consultancy in optimizing VoIP telephone systems. MintTec is an independent VoIP systems integrator, and works with the leading suppliers to deliver the best Business VoIP solutions. We have services for Cisco VoIP Phones and ShoreTel VoIP Phones.

For Further Contact:
Website: www.minttec.com/voip/
Tel #: 01962 892920
Fax #: 01962 892929
Email: info@minttec.com

How to develop a virtual os or web desktop ?

I am trying to do my last semester project in Com. engineering.
but do not know how to do this project .
I want to make something like eyeOS :http://www.eyeos.org/

eyeOS is written in Javascript and uses CSS and HTML to create a web page that looks like a desktop. Most of the apps it supplies are self contained javascript apps. As Javascript is a plain text file saved as .js files and linked into web pages if you load eyeOS and view the page source you can view the source code for the entire thing.

Given all of the above I would say making an eyeOS alike would be a lot easier than your partner's suggestion. Further with this web based OS you can make the OS as full featured or as basic as you wish.

Implementing SIP for VoIP on Android akin to Sipdroid would be a lot more complicated. There are also requirements and prerequisites that must be met. In terms of project freedom this option has a lot more constraints and is very closed ended.

For 200 marks I would personally go with the easier route as it seems to have more accessible and practical resources as opposed to miles of documentation that 'explains' how something is done but doesn't actually show you.