An immediate timeout, rather a message that states your session has expired is due to your browser settings not allowing TrustFax to set a login cookie.
By allowing/overriding your browser setting to allow for www.trustfax.com
will resolve this issue.
The default setting for Microsoft Internet Explorer 7.0 does not require you to make a change. Firefox default setting may require you to add www.trustfax.com
as an allow sites in the privacy section.
Send an email to support [ at ] trustfax.com with the name of your browser to receive instructions.