The other key guideline of the IP telephone system is good voice quality. It requires a series of effective quality assure measure.
IP电话系统的另一个关键指标就是能够提供较好的话音质量，这要求有一套行之有效的质量保证措施。
The other key guideline of the IP telephone system is good voice quality. It requires a series of effective quality assure measure.
IP电话系统的另一个关键指标就是能够提供较好的话音质量，这要求有一套行之有效的质量保证措施。
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