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Archive for the ‘cookbook’ Category

HD Voice Cookbook

Sunday, April 5th, 2009

One of the themes of this blog is how phone conversations can sound much better in VoIP because of wideband codecs. If you have a corporate IT department and a new PBX from a company like Cisco, Avaya, Nortel, Siemens or Alcatel-Lucent, the phones can normally can be configured to use the (wideband) G.722 codec on internal calls. And if you use Skype on your PC, it normally runs with a wideband codec, unless you make a SkypeOut call to a regular phone number.

But what if you are working out of a home office, and you just want your desk phone to sound good, and to use a wideband codec when calling other phones with wideband capabilities? Unfortunately its still a project that can require some technical skills and a lot of time. To make it easier for you, here’s a cookbook explaining step by step how I did it for a particular implementation (Polycom IP650 phone using an account at OnSIP).