You’re more than welcome to change and upload your own hold music for customers to hear when placing them on hold. https://cdn.elev.io/file/uploads/eid_pwPCq9B83qCr7_E7suYUZb-t0pP21wOYRLdoB2g/yv6Yt63X8lcmvuEXlhv7wkqnse74l7BJV3B4YYX8Ll8/hold-7Kw.png

To change this, simply select Settings > Phones > Change hold music > Upload mp3 file. 

https://cdn.elev.io/file/uploads/eid_pwPCq9B83qCr7_E7suYUZb-t0pP21wOYRLdoB2g/BmPAn6_Ud7lEgzGwpXys70YPXe91SnmisjWETy8uNGw/hold_music--5c.png