HD voice calls are far superior to cell phone or analog phone calls. The enhanced audio quality allows participants to more clearly hear other participants and their subtle intonations that can be powerful cues which add important context to the conversation.
HD Voice calls are also far less tiring to listen to than standard definition calls.
Participants on long HD conference calls notice that they are less drained from having to strain their hearing on muddled standard definition or cellular calls.
The Teo UC platform offers multiple HD codecs and is smart enough to measure real time network availability between endpoints to select the best one to use for every connection.