Fax Technology

Group 4 Compression

Compression standard used to transmit faxes

Radiofax (also known as Weatherfax or HF Fax)

Fax information sent via radio. Primarily used for disseminating weather and meteorological data to maritime vessels.

T.38

International Telecommunications Union Recommendation for transmission of fax data where part of the transmission occurs over an IP based system (for example the internet)