Lexmark MX611de

  • Updated

The Lexmark MX611de has been certified to work with T38Fax.com.

The SIP/T.38 settings are as follows:

  • Fax Transport: T.38
  • STUN Server: Stun Server of your choice
  • Proxy: sip.t38fax.com;transport=udp
  • Registrar: ${SIPProxy}
  • User: YOUR_DID
  • Password: YOUR_PASSWORD
  • Contact:
  • Outbound Proxy: sip.t38fax.com


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