
IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for Speech Telephony
NORMA vydána dne 25.6.1990
    
        Designation standards: IEEE 823-1989
                
                
                
                Note:    NEPLATNÁ
               
                Publication date standards:  25.6.1990
        Approximate weight : 300 g (0.66 lbs)
        Country:          International technical standard
        Kategorie:  Technické normy IEEE