In case you are not aware, Bell Canada has installed some deep packet
inspection technology on non-internet telecommunications links which
change user data in order to disrupt applications.

While at the ISP level, this would be called throttling, in this case,
Bell Canada is modifying payload data in point to point virtual circuits
on a service that provides no internet connectivity (GAS, tariff 5410).

This is tantamount to Bell Canada looking into bank transactions between
bank branches and bank data centres and deciding which transaction
should be modified to cause the application to reject it (invalid
sequence number) and force transaction to be retransmitted.

This was installed and implemented without warning Bell's commercial
customers who purchase this type of telecommuinications service (which
is regulated by the CRTC (canada's equivalent to FCC in USA).

There are also very serious privacy implications with regards to the
technology purchased by Bell Canada because it can collect usage data
associated with individual users, even if those individual users are NOT
customers of Bell Canada.

If your company makes use of ADSL services in Québec/Ontario to link
your branches or employee residences to your corporate network, you
should be extremely concerned about this.

While the CRTC has refused to grant an immediate injunction to force
Bell Canada to shutdown its 250 or so Ellacoya boxes, they are holding a
consultation on the issue.

(at the top of the page, you can click on the file number to get full
list of documents filed so far on this issue).

Remember that Bell Canada is using its monopoly status to muck with data
links leased by Bell's competitors. They have paid for garanteed
bandwidth to reach their individual customers, and Bell is changing data
packets to disrupt the traffic.