T37 fax inbound/outbound with Unity 4.0(5)

Enable DNS resolution: 

ip domain-lookup

ip name-server <Unity server>

ip domain-name gateway.com (domain of gateway)

Enable T37: 

fax interface-type fax-mail  —- (reload the router)

Enable T37 Onramp: (Think of Onramp as coming ON to the network)
mta send server unity40.iptel.com port 25  —- (mail server – unity in this case)
mta send with-subject both —– (sends ani and dnis in subject)
mta send mail-from hostname pstnsw.gateway.com  ———– (Mail from hostname)
mta send mail-from username $s$
mta send return-receipt-to hostname pstnsw.gateway.com ———— (NDR from hostname)
mta send return-receipt-to username $s$
 !

application
 service onramp flash:app_faxmail_onramp.2.0.1.3.tcl

dial-peer voice 203 pots
 service onramp
 incoming called-number 16285253800
 direct-inward-dial
!
dial-peer voice 204 mmoip
 service fax_on_vfc_onramp_app out-bound
 destination-pattern 16285253800
 information-type fax
 session target mailto:ifax@iptel.com      ——– This should be the Inbound Fax mailbox that Unity monitors.

Enable T37 Offramp: (Think of Offramp as going OFF the network)

mta receive aliases pstnsw.gateway.com ———– (receiving alias name)
mta receive maximum-recipients 10 —————- (default is 0, set this to something greater than 0)
mta receive generate permanent-error
!
application
 service offramp flash:app_faxmail_offramp.2.0.1.1.tcl

 dial-peer voice 201 pots
 destination-pattern 1274255100.
 port 1/0/0:23
 forward-digits 10
!
dial-peer voice 202 mmoip
 description Offramp inbound from Unity
 service offramp
 information-type fax
 incoming called-number 1274255100.
 dsn delayed
 dsn success
 dsn failure