User manual

8820IP Phone User Manual_ SIP (V1.44)
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Ø Audio settings:
Fig 1.3 Audio Setting
● codec1: Set the priority 1 of the audio compression algorithm. The
options are g729，g7231，g711u，g711a , gsm, ilbc and null.
● codec2: Set the priority 2 of the audio compression algorithm. The
options are g729，g7231，g711u，g711a , gsm, ilbc and null.
● codec3: Set the priority 3 of the audio compression algorithm. The
options are g729，g7231，g711u，g711a , gsm, ilbc and null.
● codec4: Set the priority 4 of the audio compression algorithm. The
options are g729，g7231，g711u，g711a , gsm, ilbc and null.
● codec5: Set the priority 5 of the audio compression algorithm. The
options are g729，g7231，g711u，g711a , gsm, ilbc and null.
● codec6: Set the priority 6 of the audio compression algorithm. The
options are g729，g7231，g711u，g711a , gsm, ilbc and null.
● vad: Enable/disable VAD (voice activity detection).