If they call to ask a question about your paper work or job, yes. If they call to see if you are home, no. A fine line here, but if they call and you aren't home you can always say you went to the drugstore or the doctor. How are they to prove that? They can't.
The sick man asked the doctor to make a house call.
That's a protected class. best not to use those terms otherwise employers are erring on the side of caution.
Not allowed to take sick leave, or to use the quota of days that are otherwise allowed for sick leave.
We will never know, since almost all US employers are tiny employers. Small employers do what they wish and can afford.
you can call a local hospice or even just pop around to an old lady or gentlemans house. You will feel like you are helping someone and that is how you can help the sick.
How many days are you allowed off sick before a medical certificate is required
NO! It's a benefit of some employers.
you wont get sick
Sick pay is unregulated. It is a gift from some employers, and the rules are whatever the employer says.
Do you mean when you call on the phone? Of course not; that makes no sense at all.
You can call a hippo who thinks she's sick a 'Sicko Hippo'.
Give them a call and say that you are sick.