In addition, the use of digital encoding technology to ensure clear and natural sound quality of calls at the same time, with a secretive, confidential business calls or worry about being tapped.

• 此外，由于运用了数字编码技术，在保证通话音质清晰自然的同时，具有了保密性，再机密的商务通话，也不用担心被人窃听。