ForewordIntroduction1 Scope2 References3 Definitions, symbols and abbreviations4 Interface definition5 Narrowband telephony transmission performance5.1 Applicability5.2 Overall loss/loudness ratings5.3 Idle channel noise (handset, headset UE, , and electrical interface UE)5.4 Sensitivity/frequency characteristics5.4.1 Handset and headset UE sending5.4.2 Handset and headset UE receiving5.4.3 Desktop hands-free UE sending5.4.4 Desktop hands-free UE receiving5.4.5 Hand-held hands-free UE sending5.4.6 Hand-held hands-free UE receiving5.5 Sidetone characteristics (handset, headset, and analogue electrical interface UE)5.6 Stability loss5.7 Echo Control5.8 Distortion5.9 Void5.10 Information on other parameters (not normative)5.11 Sending performance in the presence of ambient noise5.12 Delay5.13 Echo control characteristics5.14 Clock accuracy5.15 Jitter buffer management behaviour6 Wideband telephony transmission performance6.1 Applicability6.2 Overall loss/loudness ratings6.3 Idle channel noise (handset, headset UE, and electrical interface UE)6.4 Sensitivity/frequency characteristics6.4 Sensitivity/frequency characteristics6.4.1 Handset and headset UE sending6.4.2 Handset and headset UE receiving6.4.3 Desktop hands-free UE sending6.4.4 Desktop hands-free UE receiving6.4.5 Hand-held hands-free UE sending6.4.6 Hand-held hands-free UE receiving6.5 Sidetone characteristics (handset, headset, and analogue electrical interface UE)6.6 Stability loss6.7 Echo control6.8 Distortion6.9 Void6.10 Sending performance in the presence of ambient noise6.11 Delay6.12 Echo control characteristics6.13 Clock accuracy6.14 Jitter buffer management behaviour7 Super-wideband telephony transmission performance7.1 Applicability7.2 Overall loss/loudness ratings7.3 Idle channel noise (handset, headset UE, and electrical interface UE)7.4 Sensitivity/frequency characteristics7.4.0 General7.4.1 Handset and headset UE sending7.4.2 Handset and headset UE receiving7.4.3 Desktop hands-free UE sending7.4.4 Desktop hands-free UE receiving7.4.5 Hand-held hands-free UE sending7.4.6 Hand-held hands-free UE receiving7.4.7 Electrical interface UE sending7.4.8 Electrical interface UE receiving7.5 Sidetone characteristics (handset, headset, and analogue electrical interface UE)7.6 Stability loss7.7 Echo control7.8 Distortion7.9 Void7.10 Sending performance in the presence of ambient noise7.11 Delay7.12 Echo control characteristics7.13 Clock accuracy7.14 Jitter buffer management behaviour8 Fullband telephony transmission performance 7.9 Void 26.1313GPPRelease 18RequirementsTerminal acoustic characteristics for telephonyTS Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM