You cannot make audio call on Gmail. However video calls are possible in Hangouts. It is the latest IM of Gmail service.
Calling in Gmail is not free of cost. It takes credit to call from Gmail. The calling can be done to any of the contacts having a phone number.
You can make a call from gmail account. This however costs you credits or money. This could also require internet connection to work.
You can get a call phone in Gmail if someone calls you. Gmail calling is not free but chargeable. It can be done to anyone in your contacts.
You can call from a Gmail account to any home phone. You can do that by calling in Gmail. However it is not free and costs you money.
video call remove gmail
Yes, you can call people but not for free. It costs you charges as it takes up bandwidth. You can call any of your contacts on Gmail.
You can make international calls from skype or from mobilerainbow. http://www.mobilerainbow.co.uk/international-calls.asp
You have to attain a minimum age to make a Gmail. The age of creation of Gmail is 13 years. You can easily create a account after that.
Call phone is a feature to enable voice calling. It can be done via Gmail left pane. Gmail voice calling is not free and costs you money.
By making website like gmail