Features:
1. Plug and Play. It is suitable for 10/8.1/8/7.
2. For GRIS fax cats can dial the Internet, and send and receive faxes, but do not support voice calls.
3. The 56k data/fax modem uses USB2.0 Type A with a full speed of 56kb/s.
4. Comply with V.92, V.90, and V.42, V.42bis/MNP5 protocol. Meets V.17, V.29, and V.27ter Group 3 fax protocols.
5. Support automatic dialing, tone, and pulse dialing, automatic answering, and automatic fax sending and receiving.
6. Support caller ID, automatic format/speed sensing, data/fax/voice call, single profile stored on the host, call forward/backward.
7. Up to 56k data download, 48k data upload, and 14.4k fax communication.
8. Compatibility: Standard and expanded AT command set compatibility. Provides fast connection and maintenance function on the modem.

Specification:
Type: Normal Dial-up Modem
Category: External type
Interface Type: USB
Telephone Line Connection: RJ11
Transmission Rate: 56Kbps
Bus-powered USB Device: 5V
Transmission Protocol: V.90/K56flex
Fax/Protocol: V.17, V.29, Group 3, Class 1
Voice Function: Voicemail, Autoreply
Main Function: Dial the Internet, automatically send and receive faxes
Operating System: For Windows 7/8/10
Compatibility: Compatible with AT and extended AT command sets