Cisco WRP400-G1 Administration Guide - Page 107

Advanced Voice Fields Line page A Third Preferred Codec Third preferred codec for all calls. (The actual codec used in a call still depends on the outcome of the codec negotiation protocol.) Select one of the following: Unspecified, G711u, G711a, G726-16, G726-24, G72632, G726-40, G729a, or G723. Use Pref Codec Only The default is Unspecified. To use only the preferred codec for all calls, select yes. (The call fails if the far end does not support this codec.) Otherwise, select no. Silence Supp Enable The default is no. To enable silence suppression so that silent audio frames are not transmitted, select yes. Otherwise, select no. Silence Threshold The default is no. Select the appropriate setting for the threshold: high, medium, or low. G729a Enable The default is medium. To enable the use of the G.729a codec at 8 kbps, select yes. Otherwise, select no. Echo Canc Enable The default is yes. To enable the use of the echo canceller, select yes. Otherwise, select no. G723 Enable The default is yes. To enable the use of the G.723a codec at 6.3 kbps, select yes. Otherwise, select no. Echo Canc Adapt Enable The default is yes. To enable the echo canceller to adapt, select yes. Otherwise, select no. G726-16 Enable The default is yes. To enable the use of the G.726 codec at 16 kbps, select yes. Otherwise, select no. Echo Supp Enable The default is yes. To enable the use of the echo suppressor, select yes. Otherwise, select no. The default is yes. Cisco Small Business WRP400 Administration Guide 105