[Asterisk-Users] T1 to T1 on asterisk?

[Mark Spencer]

> How does the portmaster distinguish between an incoming ISDN call
> and incoming analog call?  I know this can be done, my local ISP
> can handle ISDN and analog calls on the same phone number and it
> must know when the call comes in.

You could look for HDLC framing...

> Whatever method the portmaster uses to tell those apart should be
> applicable to * to disable the echo cancel.  This might be as
> simple as "voice" versus "data" call (is that info provided by
> the PSTN?).  Is the echo cancel needed on voice ISDN calls?  I
> can live with no support for voice ISDN calls (can imagine why I
> would ever get one).

You could also try to look at voice vs. data, yah.

Mark