[VoiceOps] Fake Voicemail Anti-Robocall Tactics

Alex Balashov abalashov at evaristesys.com
Tue Feb 16 12:02:54 EST 2021


Agree. Intent to deceive or misrepresent is at the heart of spoofing.

—
Sent from mobile, with due apologies for brevity and errors.

> On Feb 16, 2021, at 12:00 PM, Brooks Bridges <brooks at firestormnetworks.net> wrote:
> 
>  I would posit that outpulsing a specific ANI with authorization of, and at the request of, the number's owner doesn't really fall under the colloquial understanding of "spoofing".  I think that term is typically used to imply malice or deceit.
> 
> On 2/16/2021 8:44 AM, Carlos Alvarez wrote:
>> But the ridiculous side of this is that there are valid reasons to "spoof" numbers.  We have two customers who need to do it all the time, and it's legal, as well as demanded by their customers.
>> 
>> 
>> On Tue, Feb 16, 2021 at 9:37 AM <paul at timmins.net> wrote:
>>> Legal or not it’s genius. Humans will notice right away and it’ll cost for the robocallers.
>>> 
>>> Sent from my iPhone
>>> 
>>>> On Feb 16, 2021, at 11:23 AM, Calvin Ellison <calvin.ellison at voxox.com> wrote:
>>>> 
>>>> 
>>>> Today we received a notice from one of our underlying carriers that included the following statement:
>>>> 
>>>>> * If a customer spoofs an ANI that they do not own, the clec's can forward to call to a voiceless Voicemail which appears to be FAS.
>>>>> 
>>>> 
>>>> Is there any legal device that actually supports this practice? I'm looking for a specific statute, FCC rule, precedent in a judicial ruling, or the like.
>>>> 
>>>> The FCC has ruled that the SIP 608 response code is to be used for signaling when a call is rejected. I doubt the FCC or FTC has ruled that terminating carriers are permitted to cause loss of trust and revenue between upstream intermediate and originating carriers.
>>>> 
>>>> 
>>>> Regards,
>>>> 
>>>> Calvin Ellison
>>>> Systems Architect
>>>> calvin.ellison at voxox.com
>>>> +1 (213) 285-0555
>>>> 
>>>> -----------------------------------------------
>>>> voxox.com 
>>>> 5825 Oberlin Drive, Suite 5
>>>> San Diego, CA 92121
>>>> 
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