The post is structured like a Top 10 list. Most of the items included are genuinely useful. However, right at the bottom in the #1 position, he highlights newfound support for very high-sample rate audio, aka Super-Wideband.
As you likely heard on April 27th Northern Alabama suffered a spate of violent storms, including a number of large tornados. Many thousands of people were impacted, including long term loss of power and network connectivity. Digium was amongst the many, many businesses impacted by the events of the day.
Digium’s Tristan Barnum, Director of Product Marketing for Switchvox, has a nice piece over at IT Business Edge called , “Five Things You Didn’t Know About VoIP” I especially like item #5 on her list, “SIP Trunks don’t exist. There’s no such thing.” It’s so very true, yet it flies in the face of the growing hubbub about SIP trunking in recent years.
Having read & listened this far into this series you should now have some grasp of how narrowband (G.711) compares to wideband (G.722/G.722.1) and even super-wideband (G.722.1C) audio for telephony applications. The differences in many cases are quite pronounced, even startling. What you hear in the examples are just the most obvious properties of the encoding, sampling rate and by implication, the available audio bandwidth. It’s worth understanding a bit more about the evolution of the role of the codec over time. This will help you frame up how the Siren codecs fit into the Asterisk realm.