When you sign up with an internet fax service you will also be given a free fax number. This can also become your Google fax number because you can receive faxes in your Gmail account as well.
Any faxes sent to your online fax number will automatically be forwarded to your Gmail email and you can send faxes from your email account as well and it will be sent from your fax number too.
An online fax number works like any other fax number but it has more benefits because you don't have to install any wires or cables and it is activated instantly. You can choose from a local or toll free fax number but many services also allow you to keep your current fax number and integrate it with your account.
