They may well be in the process of handing you over, but what do you do if you don't hear Sector 14 telling you to change onto Sector 20's freq?
Without doing a thing, you'll be giving problems to those 2 ATC Sectors, who may be contacting many other Sector controllers to find out if you are in contact with them, a few military ATCU's and at least 2 Air Force fighter crews.
Now that is even not so cleverer
I say again, best keep monitoring 121.5