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who do it take two atm cells to transport one G.711 PCM sample

According to Cisco it take two ATM cell to tranpsort a single PCM voice sample.

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Anonymous
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Re: who do it take two atm cells to transport one G.711 PCM samp

One g711 sample holds 80byte voice sample payload.

hence to be carried by ATM you need two cells.

remember ATM cell is 53byte, 48BY payload and 5 byte header. This alone

can not carry the 80byte g711 payload and hence needs to cell and the

payload is carried as below.

PCM/G.711

Cell 1 of 2 45 byte voice

payload......3 bytes VoX

header.....5 bytes ATM header

Cell 2 0f 2 8 bytes AAL5

trailer, plus 5 bytes padding...35 byte

voice payload..5 byte ATM header

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