There’s lots of hype today about High Definition or Wideband Audio on VoIP calls. What does it all mean for business voip? It’s actually quite simple. It means the sound quality on calls which are in HD, sound better than traditional phone calls. These days, I am used to HD quality calls but to be honest, my first experience on an HD call was shocking. The difference between HD and “regular” calls is kind of like the difference between AM and FM radio. It’s substantial. What makes it all possible? A VoIP call between two endpoints or phones is simply a session in which data is encoded and decoded according to a particular shared audio format. In the case of a High Definition or Wideband call, the shared format is referred to as a wideband CODEC. OnSIP supports the G.722 ITU standard wideband codec. This is a widely used wideband codec so many phones support it, allowing OnSIP customers to have really high quality wideband calls to and from one another. What’s really great is we have successfully tested wideband between phones of different manufactures including Polycom and Aastra. Around here, that’s very important as we support many clients with mixed phone environments. In a business voip installation, wideband has a pretty big impact. Since many of the calls are between users (extension to extension calls), lots of calls are transmitted using the wideband codec. Here are some resources about the use of wideband audio for business voip: Using Polycom phones which support HD http://www.wirevolution.com/2009/04/05/hd-voice-cookbook/ Making use of Wideband Codec Right Now http://www.mgraves.org/voip/2009/07/making-use-of-wideband-voice-right-now-onsip/ Voip-info.org on Wideband VoIP http://www.voip-info.org/wiki/view/Wideband+VoIP Some providers make a big deal of their support for HD or Wideband Audio. At OnSIP, it’s just standard stuff.