ETSI EG 202 057-4-2005 Speech Processing, Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 4: Internet access V1.1.1
2008ETSI EG 202 057-4-2008 Speech Processing, Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 4: Internet access (V1.2.1)
2005ETSI EG 202 057-4-2005 Speech Processing, Transmission and Quality Aspects (STQ); User related QoS parameter definitions and measurements; Part 4: Internet access V1.1.1