What is the bandwidth requirement of an active duplex wireless call using G.711 codec?（）A、64 kb/sB、91.2 kb/sC、173 kb/sD、183 kb/sE、211 kb/s
What is the bandwidth requirement of an active duplex wireless call using G.711 codec?（）
- A、64 kb/s
- B、91.2 kb/s
- C、173 kb/s
- D、183 kb/s
- E、211 kb/s
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