Re: [asterisk-users] Block Spam Calls

Jeff LaCoursiere Fri, 13 Dec 2019 11:44:27 -0800

Mind posting your dialplan code? I was thinking the same thing - verymuch like an old spam control program I used to use whose name nowescapes me. First time senders would have to respond to an auto-reply,then were added to a whitelist.


This would be a great FreeBSD module...


Cheers,

        *Jeff LaCoursiere*
STRATUSTALK, INC. / CTO

Phone:  *+1 703.496.4990 x108*
Mobile:         *+1 815.546.6599*
Email:  *[email protected]* <mailto:[email protected]>
Website:        *https://www.stratustalk.com*
Address:        *One Freedom Square
13th Floor
Reston, VA 20190*

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On 12/13/19 10:48 AM, Julian Beach wrote:

Hello Doug,

Friday, December 13, 2019, 11:03:37 AM, you wrote:

This is exactly what I do - “press 1 for a human”
Works great

I do this as well, but I also do a database lookup to see if the number
is on our speeddial list and if so, pass the call directly on without
the IVR prompts.

I do something similar for calls without caller ID, but I was still
getting robocalls with spoofed caller ID. I have now changed the dialplan
slightly so that the first time people call they are asked to dial 1.
After the first call, they are added to a known caller list and get
straight through, and any robocalls at that point are blacklisted
manually. I have found that most robocallers spoof the Caller ID so
rarely call from the same number twice. It means that legitimate
callers who cannot dial 1 just have to dial again to get through to
the phones - there is a recorded message telling them to dial 1 or
call back. I haven't had a robocall since!

The hardest thing about this was extracting all the numbers of
previous callers from the CDR and adding it to the Previous_Callers
AstDB for the lookup. I didn't want to make existing callers go through
the initial learning process.

<<attachment: jeff.vcf>>

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Re: [asterisk-users] Block Spam Calls

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