Hi,

You really need to look at this

The 160 is bytes in the payload

The call consumes about 80 -90 Kbps depending on the media eg frame-relay ATM , Ethernet.

Here is the stats from a call G711 I have in my 3750 Lan switch right now

Queueing strategy: fifo

  Output queue: 0/40 (size/max)

5 minute input rate 89000 bits/sec, 50 packets/sec

  5 minute output rate 91000 bits/sec, 52 packets/sec

     4686999 packets input, 762427991 bytes, 0 no buffer

I hope this is clear

HTH

Alex