VoIP: Killer Technology or Yet Another Victim of Hype? - Page 3

By Beth Cohen | Posted Mar 5, 2003
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How Can I Take Advantage of VoIP?

So, is it worth the investment? The answer is, as usual, "it depends." VoIP is evolutionary, not revolutionary, technology. If you are moving into a facility where you need to completely build out your infrastructure, then installing VoIP equipment makes sense. It can be very competitive with traditional POTS switched networks. Some companies put a VoIP blade in an existing POTS switch. They feel that it gives them the best of both worlds, but I suspect that they might be hedging their bets a bit too much and not benefiting fully from either technology.

There are some other ways that you can take advantage of VoIP technology. In a "green field" installation, you have a number of attractive choices that can give you more network flexibility. One possibility is eliminating the wires entirely. There is nothing preventing you from installing VoIP over wireless 802.11x networks. "The security algorithms do introduce some latency, but because of the short distances they shouldn't be a problem," says Tyliszcak.

Unified messaging is another example. Unified messaging is one-stop shopping for all your voice mail, email, and fax communications. Unified messaging lets you retrieve all your messages with one phone call or visit to a website. While unified messaging sounds great, the technology has not entirely jelled yet. It can be costly and complicated to implement, and the services have not been perfected, including problems with voice to text translation. Unified messaging is dependent on the VoIP technology so as that application matures, there will be more incentive to implement a VoIP solution.

Recently, Cisco has been investing heavily in VoIP for the enterprise market. They are sponsoring a major trial with the city of Houston, TX and are replacing the entire municipal government telecom service with Cisco VoIP equipment. They claim that it will save 50% over the costs of maintaining the old equipment.

Of course, it isn't clear whether or not replacing Houston's old system with a more modern switched network would result in similar savings. As Chris Ward, notes, "Enterprises' IT departments are real pragmatists. They will not invest in a technology unless there are demonstrated cost savings or substantial improvements in the quality of service."

Conclusion

Here's a checklist of things to watch for when considering whether to invest in VoIP:

  • Is your traditional POTS equipment (if already existent) overdue for replacement?
  • Are you planning on implementing unified messaging and other integrated voice/data services?
  • Do you have enough bandwidth for all your data and voice needs?
  • Do you have good connectivity to the Internet?
  • Do you have a substantial international presence or communication requirements?
  • Does your company have multiple locations?
If you answer 'Yes' to most of these questions, then you should seriously consider VoIP technology as part of your IT infrastructure mix. If not, maybe you should put it on the back burner until the industry matures a bit more and the real benefits become more apparent.

Reference

http://www.ionary.com/ - Article about the downside of VoIP
http://itel.mit.edu/ - MIT Program on Internet & Telecoms Convergence



Beth Cohen is president of Luth Computer Specialists, Inc., a consulting practice specializing in IT infrastructure for smaller companies. She has been in the trenches supporting company IT infrastructure for over 20 years in a number of different fields, including architecture, construction, engineering, software, telecommunications, and research. She is currently consulting, teaching college IT courses, and writing a book about IT for the small enterprise.


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