Most clients won't speak PTP or know how to deal with it. But NTP is something that many can deal with. So, use PTP as a refclock for your NTP service, and th

Most clients won't speak PTP or know how to deal with it. But NTP is something that many can deal with. So, use PTP as a refclock for your NTP service, and then let the clients deal with an interface they already know and understand. Those clients that really care can deal with the additional complexities of PTP, if you want to let them.