EG 202 057-2-2008 Speech Processing@ Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 2: Voice telephony@ Group 3 fax@ modem data services and SMS (V1.3.1)
2011EG 202 057-2-2011 Speech and multimedia Transmission Quality (STQ); User related QoS parameter definitions and measurements; Part 2: Voice telephony@ Group 3 fax@ modem data services and SMS (V1.3.2)
2009EG 202 057-2-2009 Speech Processing@ Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 2: Voice telephony@ Group 3 fax@ modem data services and SMS (V1.3.1)
2008EG 202 057-2-2008 Speech Processing@ Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 2: Voice telephony@ Group 3 fax@ modem data services and SMS (V1.3.1)
2005EG 202 057-2-2005 Speech Processing@ Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 2: Voice telephony@ Group 3 fax@ modem data services and SMS (V1.2.1)
2002EG 202 057-2-2002 Speech Processing@ Transmission and Quality Aspects (STQ); User Related QoS Parameter Definitions and Measurements; Part 2: Voice Telephony@ Group 3 Fax and Modem Data Services (V1.1.1)