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ETSI ES 202 739
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ETSI ES 202 739 Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband VoIP terminals (handset and headset) from a QoS perspective as perceived by the user
standard by European Telecommunications Standards Institute, 07/01/2017
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Full Description
The present document provides speech transmission performance requirements for 8 kHz wideband VoIP handset and headset terminals; it addresses all types of IP based terminals, including wireless and soft phones.In contrast to other standards which define minimum performance requirements it is the intention of the present document to specify terminal equipment requirements which enable manufacturers and service providers to enable good quality end-to-end speech performance as perceived by the user.
In addition to basic testing procedures, the present document describes advanced testing procedures taking into account further quality parameters as perceived by the user.