Obihai OBi200 1-Port VoIP Adapter with Google Voice and Fax Support for Home and SOHO Phone Service, Black - Walmart.com
1PORT VOIP ADAPTER USB T38 FAX SUP SIP & OBITALK ONLY - Walmart.com
GRANDSTREAM - Adattatore SIP analogico HandyTone HT701 1xFXS e T.38, fax con porta FXS, Ethernet 10/100 Mbit : Amazon.it: Elettronica
Grandstream HT801 Analog Telephone Adapter: 1 FXS Port, T.38 Support
Fax Adapters | US-Made VoIP FAX Adapter Products
Fax Adapters | US-Made VoIP FAX Adapter Products
Fax to email | T.38 VoIP fax support
Fax Relay - T.38 Fax over IP (FoIP) | Adaptive Digital
Grandstream: HandyTone 814 (HT814) ATA – T38Fax Incorporated
Amazon.com: 2-Port VoIP SIP Phone Adapter - GT202 Wireless Router, Supports WiFi Asterisk ATA VOS FXS Fax. Suitable for Home or Business (Black) : Office Products