There are many reasons why there could be a difference here, and neither study has any public-facing information about their sample size or demographics. How long people are willing to wait (or if they’ll even wait at all) could certainly vary from one industry, age group, or region to another.
Turn “Thank you for calling” into “Thank for your calling PATLive.” You can then add a tagline, or pepper in branded language that your audience would appreciate. My local Kay Jewelers, for example, would answer every call with “Thank you for calling Kay Jewelers, home of the Leo Diamond,” and women’s clothing company Adore Me starts their greeting by calling callers “Adorables,” which is what they call their customer to create an inclusive, exclusive feeling.

Listening to a mailbox full of voicemail recordings can take valuable time out of your day. But hearing each one all the way to the end is necessary in order to get the information from it.
Record and play the message while the caller is waiting to be connected. An excellent way to professionally introduce your business to the callers and set it apart from the competitors.