The Ekiga audio codecs table in the preferences permits you to change the codec order as well as disabling the codecs you don't want to use. Each codec has strong and weak points. For example, G.711 will give the best voice quality but will use the most bandwidth while SPEEX will give an average voice quality but requiring a very low bandwidth usage. Notice that there are two versions of SPEEX; one of them is SPEEX WideBand, which has a 16 kHz clock rate.
Ekiga-ren Hobespenetako audio-kodeken taulak aukera ematen dizu kodeken ordena aldatzeko eta erabili nahi ez dituzun kodekak desgaitzeko. Kodek bakoitzak alde onak eta txarrak ditu. Esate baterako, G.711k ahots-kalitaterik onena emango dizu, baina banda-zabalera altuena erabiliko du; SPEEXek, aldiz ahots-kalitate ertaina eskainiko dizu, baina banda-zabalera oso baxua erabiltzea eskatuko du. Kontuan hartu SPEEXen bi bertsio daudela, eta haietako bat banda zabaleko SPEEX dela. 16 kHz-ko erloju-martxa duena da.