本文件提出如何提高音质，建立在基本设计的集成电路解决方案的VS10001003手机的VoIP议长VoIP免提电话。这是通过分析声反馈可以对音质的不利影响。该文件还提供了一些提示如何最大限度地消除回音和原代码-The intent of this document is to present suggestions on how to increase sound quality of VoIP Speaker Phones built upon the basic design of VLS