T.37 Store and Forward Fax and Cisco AS5300: Dial Peers

Posted on in voice

Fax (photo by zd) id: 722728Note: This is part of a discussion regarding the configuration of a Cisco AS5300 for T.37 Store and Forward Faxing.

The final piece of the T.37 Store and Forward Fax configuration is the dial peers to handle the incoming fax and the outgoing email. I'll walk you through the configuration of each peer and then wrap things up at the end.


Incoming Fax Dial Peer

dial-peer voice 103 pots
 application onramp
 incoming called-number 5125551212

The designation pots means that this dial peer is designed to handle calls on the telephone network. The incoming called-number causes this dial peer to only handle incoming calls. Finally, this dial peer will process any incoming call that matches the pattern specified in the incoming called-number command with onramp application. In the example above, this is exactly the 10 digit number 512-555-1212.

Outgoing Email Dial Peer

dial-peer voice 104 mmoip
 application fax_on_vfc_onramp_app out-bound
 max-conn 10
 destination-pattern 5125551212
 information-type fax
 session target mailto:$d$@example.com

Once the call has been processed by the onramp application, it will be passed to a mmoip dial peer with a corresponding destination-pattern pattern match. It is very important to copy the application fax_on_vfc_onramp_app out-bound exactly as it appears. This application lives in the software on the Voice Feature Card. Any typo here will cause your outbound emails to fail.

The outgoing email will be sent to the email address specified in session target. In this example, the username portion of the email address will be defined by the $d$ macro. This macro expands to represent the dialed number. Here, the full email address will be FAX=5125551212@example.com. The example.com mail server should be configured to forward that email address to the appropriate user.


That's the end of this short discussion regarding T.37 Store and Forward Fax on the Cisco AS5300. Although I haven't gone into great detail in any particular section, I'm hopeful that this information is clear enough to get you up and running. If something is unclear, feel free to drop me a note, and I'll do my best to clear it up.

Finally, I promised a complete version of my T.37 configuration for AS5300. Enjoy!

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