I’ve just been on a call with a client. They have Strauss or somesuch a hold music. Orchestral waltzes. The person on the other end picked up exactly at the end of a phrase. It was perfect.
On-hold music programmed with meta-information that stores the exact timecodes of cadences and the end of phrases. When the person who is being waited on picks up the phone, the system keeps playing the music until the next point.
This would only result in a second or two extra hold time, but would result in the person appearing to pick up at the ‘perfect’ time, every time!