I am convinced that some corp phone trees intentionally degrade the phone call audio in order to limit success rates.

Called Blue Shield, got transferred to their prescription department. The hold music audio is full of static and analog audio transmission issues. They answer, 5 seconds into them speaking which I can barely hear, it cuts out and drops me back onto the main phone tree. I manage to get back to customer service, who transfers me to pharmacy claims dept, and 15 seconds later the call terminates.