Linksys WIP310 SPA500 Series and WIP310 IP Phone Administration Guide - Page 131

Configuring Security, Quality, and Network Features Configuring Voice Codecs 5 Parameter Preferred Codec Use Pref Codec Only Second Preferred Codec Third Preferred Codec G729a Enable G722 Enable Description 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: • G711u (all models) • G711a (all models) • G726-16 (not supported on WIP310, SPA 525G) • G726-24 (not supported on WIP310, SPA 525G) • G726-32 • G726-40 (not supported on WIP310, SPA 525G) • G729a • G723 (not supported on WIP310, SPA 525G) • G722 (not supported on WIP310) See "Supported Codecs" section on page 114. Defaults to G711u. To use only the preferred codecs for all calls, select yes. (The call fails if the far end does not support these codecs.) Otherwise, select no. Defaults to no. If the first codec fails, this codec is tried. Defaults to unspecified. NOTE Not applicable to the WIP310. If the second codec fails, this codec is tried. Defaults to unspecified. NOTE Not applicable to the WIP310. To enable the use of the G.729a codec at 8 kbps, select yes. Otherwise, select no. Defaults to yes. Enables use of the G.722 codec. Defaults to yes. NOTE Not applicable to the WIP310. Cisco SPA 500 Series and WIP310 IP Phone Administration Guide 120