I used to joke that even with extended frequency response, etc cell phones and VoIP can certainly sound worse. I would compare the Sprint "pin drop" commercials

I used to joke that even with extended frequency response, etc cell phones and VoIP can certainly sound worse. I would compare the Sprint "pin drop" commercials[0] to the (at the time) Verizon Wireless "Can you hear my now?" campaign[1] with the joke being - progress from a pin drop to yelling "Can you hear me know? How's this? Is this better? Sorry about that." 20 years of progress! Of course now (for the most part) packet loss concealment and other advanced technologies have equalized a bit of this but there are still days where I miss B-channels on a T1 PRI. [0] https://www.youtube.com/watch?v=k4dIDl8sjJk https://www.youtube.com/watch?v=k4dIDl8sjJk [1] https://www.youtube.com/watch?v=Lo0xsZCRp4g https://www.youtube.com/watch?v=Lo0xsZCRp4g