Group 3 Fax
The Groups relate the speed and sophistication of the fax machine. The standards were developed by the ITU-T (International Telecommunications Union-Telecommunication Standardization Sector) in order that fax machines from different manufactures could communicate. Group 3 fax is the most common type of fax machine transmitting on A4 paper. The machine scanning format is digital and operates at rates between 9.6Kbps and 14.4Kbps.