Looking on the internet deeply has found these results:

I am on call is the most popular phrase on the web.

I am in call 1144,000 results on the web	I am on call 1266,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
you can see that I am here, I have voted neutrally once that I am not participating in roll I am therefore informing you formally call votes as a matter of constitutional principle. I am done working in a call centre. I am what you call in the States a personal injury lawyer. If I am chosen, I will receive a call. I am scared every time I get a phone call.	I study when I'm on call. I could trade with the on When I'm on call I grab 40 winks whenever the opportunity arises. And if you do not do so, I am going to call on the ushers to ask you to leave the Chamber. But I am on call for work today, so. call time, I consider hypocritical those who think that the inactive periods while on call do not count as working time. I am supposed to be on call, but my plans for tomorrow just became my plans for tonight. As regards on

I am in call

1144,000 results on the web

I am on call

1266,000 results on the web

More popular!

I study when I'm on call.
I could trade with the on
When I'm on call I grab 40 winks whenever the opportunity arises.
And if you do not do so, I am going to call on the ushers to ask you to leave the Chamber.
But I am on call for work today, so.
call time, I consider hypocritical those who think that the inactive periods while on call do not count as working time.
I am supposed to be on call, but my plans for tomorrow just became my plans for tonight.
As regards on