Patent ID: 8780383

Claim:
A computer-implemented method for transmitting faxes from a mobile device, the method comprising: identifying a fax document template; providing, by a server, the fax document template for display on a user interface of the mobile device, wherein the mobile device is associated with a virtual private branch exchange (vPBX) user account; receiving, at the server and from the mobile device, user input in response to the displayed fax document template; generating, by the server, a fax document based on the fax document template and the user input received from the mobile device, wherein zenerating the fax document comprises inserting information associated with the vPBX account into one or more fields in the fax document template, and wherein inserting information associated with the vPBX account comprises: determining an extension associated with the vPBX user account, and inserting information identifying the extension associated with the vPBX account into a corresponding field in the fax document template; receiving a digital signature from the mobile device; authenticating the generated fax document with the received digital signature wherein authenticating the generated fax document locks the generated fax document and prevents the generated fax document from being subsequently modified; and transmitting, by the server, the authenticated fax document to one or more destinations.