Configuring Call Preferences125Codec Algorithm Bit Rate Sample Rate ReferenceG.722.1c 24 Kbps 32 Ksps RFC 5577G.722.1 G.722.1 24 Kbps 16 or 32 Ksps RFC 5577G722 G.722 64 Kbps 16 Ksps RFC 3551PCMU G.711 64 Kbps 8 Ksps RFC 3551PCMA G.711 64 Kbps 8 Ksps RFC 3551Audio codecs parameters on the endpoint are described below:Parameter Description Configuration MethodEnable CodecsSpecifies the enabled audiocodecs for the endpoint to use.Note: All support audio codecsare enabled on the endpoint bydefault.Web User InterfaceDisable CodecsSpecifies the disabled audiocodecs for the endpoint not touse.Web User InterfaceSpecial audiocodec bytesequenceEnables or disables the specialaudio codec byte sequence.Note: Different devices havedifferent definition about howsome Codecs are stored(Big-endian or little-endian),which may lead to the audioincompatibility problemsbetween Yealink and certaindevices. You can enable thespecial audio codec bytesequence feature to solve theseincompatibility problems.Web User InterfaceTo configure audio codecs via web user interface:1. Click on Account->Codec.2. Select the desired codec from the Disable Codecs or the Enable Codecs column.3. Click or to disable or enable the selected codec.4. Select the desired audio codec from the Enable Codecs column, and click orto adjust the priority of the selected audio codecs.