And look as you may, but you never will see it. Seems we've gone FOM crazy on this thread. Now we're even making up new stuff that doesn't exist.

In fact, the latest version of, "When Scheduling Calls" states the following:

A pilot has no obligation to be available for contact while on layover.
Messages left with hotel personnel or hotel room voicemail do
not constitute contact. A pilot who is contacted while on layover
should consider the effect of interrupted rest and fatigue on his next

scheduled report.

But as previously mentioned, a courtesy call to the captain might be a good idea if you're going to be off the grid for a while.