How to setup an ATA that you already own with your babyTEL T.38 Fax Line service? Mark Gibbons July 18, 2019 20:27 Updated Send us an email to firstname.lastname@example.org and ask us about using your own device (i.e. Cisco SPA 112). Provide us with the MAC address, and we will send you the information for getting it provisioned with us. Related articles How to plug in your Obi300 device for your T.38 Fax line service All Supported Devices How do I log in to Triple-T? I think my Obi300 is not connected properly to my network, what lights should be lit up on the box? If I have a power outage, can faxes be routed to a back up number with my T.38 Fax Line service?