Cisco QOS SRND states:Cisco SoftPhones can use regular G.711 codecs, in which case 128 kbps is
adequate, or they can be configured use a G.722 (wide codec), in which case 320 kbps is required.
1. As we know G711 uses 80K including IP, why would it say 128K?
2. I believe G722 uses the same bandwidth as G711 though it's called wide band. But why it says 320K?