"Jon Pitts" <usenet@pitts50.co.uk> wrote in message
news:1157809398.9244.0@damia.uk.clara.net...
> There's also HR/AMR coding that can double the voice capacity of a TRX,
> but
> admittedly all this is picking holes in a very well explained post.
As I have already stated above, HR deployment sit ontop of the 8 timeslots
per frame structure, only the TCH/H logical channels are mapped to the
physical channels by using every other frame.