[VoiceOps] Does anyone implement RFC 3219?

David Hiers hiersd at gmail.com
Thu Aug 20 11:38:55 EDT 2009

Exclusivity is indeed a key part of the performance of the SS7
network.  Administrative controls are valid means to accomplish a
goal, just like technical and physical controls.  Another side of this
is the general recognition that you can't rely solely on technical
controls to defend against a determined malicious threat.

If you've got a huge pile of CAPEX, a fat stream of OPEX, and the
careers of several cords of VPs on the line, you think differently
than a guy that just figured out how to run asterisk in a vm for his
undergrad project.  If I can use administrative controls and financial
hurdles to exclude those that don't live and breath global stability
and uptime, sign me up.


On Thu, Aug 20, 2009 at 7:07 AM, Alex Balashov<abalashov at evaristesys.com> wrote:
> David Hiers wrote:
>> I like the static nature of SS7/PSTN, and wonder how many of those
>> five nines can be attributed to it's static routing.  Sure, you can
>> translate global titles all day, but you always come back to choosing
>> among a set of static routes to complete your call.
> I wonder if some of this has as much to do with exclusivity, i.e. SS7's
> security-by-plutocracy and/or regulation, as much as with static routing.
> --
> Alex Balashov - Principal
> Evariste Systems
> Web     : http://www.evaristesys.com/
> Tel     : (+1) (678) 954-0670
> Direct  : (+1) (678) 954-0671

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