[Asterisk-Users] T1 to T1 on asterisk?

[Linus Surguy]

>
> > If that is true, then the bits are not mangled by * at all,
> > answering the previous question.  But ISDN is actually *easier*
> > in some ways, no DSP on the samples to recover the modulation.
>
> The trouble with ISDN is specifically that there is no "echo cancel
> disable" tone preceeding the call.

Surely you can look at the ISDN Q931 bearer code - easily tells you if it is
speech or data?

Linus