conference call..conference call and conference call..

I don't know why people like to have conference call. Recently I have been busy doing these conference calls almost day after another. The time zone difference is the most headache part where I have to stay late to attend the conference call. The good thing is that I can do it at home. However, with so many conference call and I almost fall asleep most of the time because they are too draggy and too many parties involved cause the conference call very messy. What to do? Working in global company supporting global initiative, this is the price I have to pay.