flexfax: T.30 Subadressing versa TSI-Hack!

[Matthias Apitz <Matthias.Apitz@Sisis.de>]

>From: Peter Bounin <Peter.Bounin@clip.de>
To: flexfaq@Sisis.de
Subject: T.30 Subadressing versa TSI-Hack!
Date: Thu, 1 Oct 1998 21:11:10 +0200
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Hello!

I read http://www.vix.com/hylafax/FAQ/Q91.html and found a phrase:

.... to do routing (hacks like that currently used for the TSI would be easy though).  Most ...

What does this mean? Is there any hack to filter any destination information from the TAG line,
or the TSI (As I know the TSI only informs about the sender - not the reciepient).