The economy will slow the growth of Voice over IP (VoIP), but deployments remain wide-ranging at mitigated levels, reports In-Stat. Slightly more than one in three U.S. businesses that have deployed VoIP use it exclusively. Many more businesses use VoIP as a partial voice solution. U.S. businesses are also beginning to embrace voice-enabled IM capabilities, particularly among younger workers.

"IP continues to be a partial voice solution for most businesses with VoIP, particularly among larger businesses," said David Lemelin, In-Stat analyst. "Therefore, there is significant room for growth even among businesses that have already adopted it."

Recent research by In-Stat found the following:

• 32 percent of enterprise-size businesses say the economic situation has slowed their VoIP deployment plans
• Broadband IP telephony remains the most common carrier-based business VoIP solution with revenues exceeding $1.1 billion in 2008, compared to $857 million for hosted IP Centrex service within the U.S.
• Adoption varies significantly by size of business, with enterprise businesses preferring a partial deployment, while SOHO businesses are more likely to go IP-only
• 13 percent of U.S. businesses use both carrier-based and premises-based IP solutions. Digital visual interface (DVI) and high-definition multimedia interface (HDMI), are related, high-bandwidth, unidirectional, uncompressed digital interface standards.