Surely with mobiles that send messages with images and videos instantly or with the digital signature of documents, you think the fax number lookup is completely out of date and we need not use it. But nothing is further from reality. The Fax is still valid and most times. It is a good way to record something beyond what we could leave with a simple email or instant message. And yes, our mobile phone can send faxes too. We need to install a specific app for this shipment.