Strong emphasis on R&D has resulted in new applications, in the form of more telephony programs and protocols supported, and enhanced product usability. Whereas earlier-generation products supported only Skype, newer models can run a host of other VoIP programs and protocols. VoIP phones now also combine mobile and entertainment functions such as MP3/MP4 playback, and even GPS tracking. Some models enable videoconferencing.
Supply of Skype phones will continue rising, boosted by the popularity of Skype and the phones' easy-to-use interface. Although supply of USB phones will remain strong, standalone phones are projected to dominate the mainstream in the next few years. Combination USB and standalone phones are seen as transitional products bridging the gap from USB to standalone applications.
The growing adoption of Skype and similar telephony programs, supported by broadband networks worldwide, will prompt more makers to spice up the product line, prioritize R&D and boost exports. Makers are integrating wireless technologies, such as Wi-Fi and Bluetooth, into an increasing number of products. However, it will take a couple more years before Wi-Fi VoIP phones breach the mainstream due to the high investment costs. The convergence trend will speed up the rollout of new VoIP phones with multimedia and mobile entertainment capabilities. SIP will be the prevailing protocol in 2007, although some makers will also use H.323, MGCP and IAX2. Prices will drop in the coming months as supply grows and chipset costs drop.