VoIP is the fastest growing business voice service

IP telephony solutions are still the fastest growing part of the enterprise voice market, Synergy Research Group has said.

VoIP solutions made up almost 70 per cent of the total telephony market last year, according to figures from the market research company.

The rest of the total telephony market was made up by legacy sectors such as PBX and KTS telephone systems.

However, the enterprise voice market, which includes IP PBX, IP/TDM PBX, and VoIP phones, fell by over 23 per cent in Western Europe in 2009.

The growth in the fourth quarter of 2009 was stronger than any quarter since the fourth quarter of 2007 though, while the second half of the year showed solid improvement.

Increased competition and limited customer spending due to economic turmoil meant that the prospects of IP telephony vendors varied over the course of the year.

Many businesses already using IP telephony solutions spent last year fortifying the proportion of their voice services dedicated to VoIP phones, In-Stat said recently.

The market intelligence company's research also found that the proportion of businesses with VoIP capabilities but no traditional TDM voice services rose in 2009.