What should the size of the Ethernet bandwidth be per call?

An engineer implements a new Cisco UCM based telephony system per these requirements:
The local Ethernet bandwidth is sized based on the total bandwidth per call.
A G.736 codec is used.
The bit rate is 64 kbps.
The codec sample interval is 10 ms.
The voice payload size is 160 bytes per 20 ms.
What should the size of the Ethernet bandwidth be per call?
A. 31.2 kbps
B. 38.4 kbps
C. 55.2 kbps
D. 87.2 kbps

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2 thoughts on “What should the size of the Ethernet bandwidth be per call?

  1. If we’re given the bit rate for the codec, I’m hoping all the options will only include one that’s actually higher making it the correct answer. Otherwise, Cisco expecting us to memorize these bit-rates, kinda dumb.

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