get https://na.connect.etherfax.net/rest/3.0/api/inbox?a=unread
Returns the number of unread fax events for the given account. When using the unread action, you may optionally provide the wait timeout value to wait for a new fax.
Example: Get unread fax count
The following example queries the number of unread faxes available.
[GET] https://na.connect.etherfax.net/rest/3.0/api/inbox?a=unread