系统内可多方同时通话，且通话不通过扬声器向外广播。
The system can realize multi-user call and the sound may not spread from the speaker.
中文包括了许多方言，而国语（通话）直以来都是国家正式采用的官方语言。
The Chinese language has many dialects spoken yet Mandarin has always been the official language.
中文包括了许多方言，而国语（通话）直以来都是国家正式采用的官方语言。
The Chinese language has many dialects spoken yet Mandarin has always been the official language.
应用推荐