CounterPath Bria iPhone Edition 1.1.2 User Guide (Revision 3) - Manual (Page 31)

Bria iPhone Edition User Guide
27
Audio Codecs Selection
Field Description
Enabled Audio Codecs Set a codec to ON to enable it. If only one codec is enabled, all calls will be made with
that codec. If more than one is enabled, Bria negotiates the codec to use (from among the
enabled codecs) with the other person.
G.729 can only be enabled if you have purchased it (page 28).
Prefer NB Codecs in WiFi Where “NB” is narrow-band.
• ON: When ON and you are using Wi-Fi, then if a narrow-band codec is available, it
will be given a higher priority in the media negotiation with the other person, which
may result in that codec being used.
• OFF: When OFF and you are using Wi-Fi, a narrow-band codec will not be given a
higher priority in the negotiation.
When a narrow-band codec is used, data usage may be lower but audio quality may be
affected. When a wide-bad codec is used, data usage will be higher and audio quality will
generally be better.
When you are using 3G, it does not matter if this setting is ON or OFF because narrow-
band codecs are automatically given higher priority on 3G calls.