Interesting article from Gigaom.com. Who Killed the Voip Revolition. Here is an excerpt..

So what happened? What clipped the wings of so many VoIP hopefuls can be boiled down to five things:

# Death by Deliberation: The incumbents and cablecos were identified as early targets for the equipment vendors, however their engineers quibbled about curbside protocols and QOS and fiddled with VoIP in the labs, delaying launches by years — far outside of the fundraising cycle of most of the VoIP startups.

# Competition Attrition: The implosion and autopsy of WorldCom signaled to most of the industry that being a competitor in telecom is not a healthy business. Those high prices were largely arbitrary, and as soon as the market pressured incumbents to reduce them, they did.

# Evolution vs. Revolution: Companies like Nortel, Siemens and Ericsson rank among the top VoIP equipment vendors today, not startups. Technologists completely underestimated the sway and leverage that the traditional vendors held over their customers.

# SIP in a Box: SIP might be an open protocol, but networks were built proprietarily and have not been bridged together. Most telecom services still communicate with each other via public switching, meaning that the wonderful possibilities that SIP might enable are limited by the capabilities of the plain old telephone system.

# Landline Decline: Even as networks were evolving, the number of landlines around the globe was shrinking. People found more convenient ways to communicate via wireless, SMS, instant messaging or pervasive email.

VoIP technology has clearly been successful in making inroads into traditional telecom networks, but in doing so, the revolution that SIP in particular, and VoIP in general, enables has been largely cast aside and the entire industry has coalesced in a race to the bottom. With this revolution went the volume of equipment and software sales that could have revitalized the supplier business and stimulated more innovation.

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