Chapter 3 Configuration and Operation of the TES301
2Complete the fields for the Voice tab.
Voice Active Detection—Voice activity detection (VAD) is a technique used in speech processing in which the presence or absence of human speech is detected. The main uses of VAD are in speech coding and speech recognition. It can facilitate speech processing and can also be used to deactivate some processes during a non-speech portion of an audio session. This technique is used to avoid unnecessary coding and transmission of silence packets in Voice over Internet Protocol applications, saving on computational resources and network bandwidth.
Comfort Noise Generation—If enable this setting, CPE can automatically generate artificial background noise to remote side when no speech during voice call.
Echo Cancellation—Echo cancellation is used to describe the process of removing echo from a voice communication in order to improve voice quality.
Voice Fax Mode—You can select FAX relay mode to transmit FAX data through IP network, None indicates CPE cannot send out FAX data but only receive FAX data, G711 Pass-through indicates CPE send out FAX data with G.711 codec, T.38 indicates CPE send out FAX data only support T.38 protocol, T.38 Fallback to Pass-through indicates CPE will try to use T.38, but if transmission with T.38 failure, CPE automatically try to send out FAX data with G.711 codec.
3Click Save Changes to save the information or Cancel to return to the dashboard.
