I will say that, at my previous carrier, the recorded phone conversations were to my benefit, many times.
I agree! There have been several times dispatch has claimed I have accepted a load verbally when I have not. They threaten me with the: "I'm getting a supervisor to review the phone conversation." The recordings have always support my version of events. I think dispatch has a tendency to only hear what they want to hear. I rarely verbally accept a load offer, especially when they insist on making me "aware". Send the load offer via the QC so there is no mistake on acceptance. I don't pay $35 a week for a glorified, electronic, satellite communicating wheel chock. Although the curly rubber coated tether is pretty cool!
As for recording while on hold, if someone really wants to listen to me talk back to the inane recorded loop that plays while on hold, more power to them! My personal best time for being put on hold is 72 minutes. I'm sure I had some choice comments I made for my own amusement. If someone was listening, all the better!