[ramchandanianil]

It depends upon the nature of the call. Without divulging details, one person just wanted to learn that they can start a company while being on H1B. This doesn't require any other knowledge i.e. it is a generic question. However, you still want to confirm from USCIS and gather any online resources they refer to. If dialing person's time is more valuable than $2, then why not have someone else do it.

Another example is find out whether you need to know when can H-4 visa candidates work on spouse's H1B visa. These are pretty generic questions and one has to wait in queue for 45 mins to 1 hour for no reason. I am not sure whether you have tried calling once. It is pretty painful. More painful, when you were waiting for one hour and your call gets cancelled or you run out of network while driving or traveling (or in elevator). You have to just make sure that you have sufficient battery and that you don't move anywhere without a network :)