Configure Fax Voip Softphone with T38FAX
T38FAX service allows you to send and receive T.38 faxes. This service provider also offers phone numbers in the United States.
Configure SIP account
Username (or SIP-ID): the phone number provided by T38FAX
SIP Registrar Server: sip.t38fax.com
Configure Outgoing Call Routing
On the General page, in the Dial on Line area, check that the following settings are used:
VOIP Protocol: SIP
Dial on SIP Server: sip.t38fax.com
Username: the phone number provided by T38FAX
Automatic Fax Reception
When configuring your incoming rule, make sure that T.38 support option is selected.
Send or Receive T.38 fax
Make sure that T.38 FAX option is enabled in the main window.