Ieee: 269-1983; Ieee Standard Method For Measuring Transmission Peformance Of Telephone Sets.
Institute Of Electrical And Electronics Engineers, Inc.
Ieee: 269-1983; Ieee Standard Method For Measuring Transmission Peformance Of Telephone Sets. - IEEE 1983
/
Ieee: 269-1983; Ieee Standard Method For Measuring Transmission Peformance Of Telephone Sets. - IEEE 1983
/