Incoming Fax to Email Server

We would like a bid on a single node incoming fax to email server. Incoming fax calls will be received over a single PRI line by a Cisco call gateway and transfered to the fax server using either t.38 or a dialogic PCI PRI card (D/240PCI-T1). Ever user will have their own DID number. There should be a one-to-one reference between the DID number an email address. Faxes must be packaged into an email as a .pdf attachment. No outgoing faxes will be necessary. This is inbound only. Asterisk or Hylafax preferable on Linux. Hardware to be supplied.