[VoiceOps] Broadworks / High cost rate center blocking

[Carlos Alvarez]

We made a list in the dialplan that traps all calls to high-fraud areas.
We made that list from various online sources regarding call fraud.  Some
of the Caribbean, Nigeria and other African regions, etc.  The only
complaint we had over the years was for one Caribbean area code that is
high fraud, but low cost, so we enabled it.

We then have our carrier capped at something like 25 cents/min and a daily
dollar cap.

I think we could share our list, however it was built many years ago and
you probably want to re-research it yourself.



On Sat, Sep 23, 2017 at 10:31 AM, Matthew Crocker <matthew at corp.crocker.com>
wrote:

>
>
> VoIP hacking is a way of life these days, I swear I think there is an
> Olympic sport for hacking now.
>
>
>
> By default we block all international calls on users (011 dialed) and will
> enable using auth codes or outright if the customer insists and bears all
> potential costs.  That has significantly reduced / eliminated international
> toll fraud on our switch.   Now, we see fraud going to NANP (1+ dialed)
> high cost ratecenters/NPANXXs.
>
>
>
> Is there a list of the high cost NPA-NXXs or should I just go through my
> upstream carriers rate deck and sort by $$/MOU?
>
> Does anyone know how to mark the high cost NPA-NXXs in the Broadworks
> Network Server so the calls are marked as high cost / expensive?  Then I
> can treat them as international and block or require an auth code.
>
>
>
>
>
> -Matt
>
>
>
> --
>
> Matthew Crocker
>
> Crocker Communications, Inc.
>
> President
>
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>
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