| 摘要 |
<p>Provided is a wireless IP telephone set that, even when packet loss frequently occurs during a telephone call, keeps deterioration in audio quality to a minimum, permitting the telephone call to be continued without being interrupted. The wireless IP telephone set has a plurality of codecs. In a case where audio packet loss exceeds a predetermined value during a telephone call, switching to a lower bitrate codec is performed in different stages. In a case where there is no lower bitrate codec, a transfer request to a previously set transfer destination is transmitted.</p> |
