can I use any music I want for my phone hold music?

Question

with regards to the DCMA?

With regards to the DMCA?

Answer 1

You are right that the DMCA may consider it to be copyright infringement if you play whatever you want, however, someone would have to report you.

Your safest bet would probably be just to use a radio station to provide "on hold" music because the radio stations pay royalties to the artists.