This accomplishes "only allow INVITES from SIP registrar" on Polycom SoundPoint IP and VVX phones. <voIpProt.SIP voIpProt.SIP.strictUserValidation="1></<voIpProt.SIP> On 05/26/2016 03:20 PM, John S. Robinson wrote:
In a SIP environment many UA's have a feature "only allow INVITES from SIP registrar" or words to that effect. Another possibility might be to challenge incoming INVITEs (and other SIP methods) if the host switch and CPE supports challenge. (Metaswitch for example is actually quite aggressive with use of challenge responses on most transactions.)
Those SIP techniques along with good IP access control or NAT can substantially reduce SPIT (SPam Internet Telephony.) Is there a Federal "Truth in Caller ID Act?" If yes, it is probably only enforceable on Interstate calls, and then you need to find someone who has the competence, standing and urgency to enforce it.
I am not a lawyer, but I know that law can vary from State to State. Illinois had a "don't lie about caller ID" statute before our legislature, but it got voted down.
Communichanic Consultants, Inc. John S. Robinson, President /office:/ 708-246-8900
On 5/24/2016 23:40, Mike Ray, MBA, CNE, CTE wrote:
We get these calls all the time, and the offending call never originates from our network. We tell the caller that they can try two remedies:
1. Call their own phone company and file a nuisance call report and, 2. Call local law enforcement and file a harassment complaint (if the case warrants it) 3. File a complaint with the FTC if it's just a sales call to a do-not-call list subscriber
None of these actually does anything. However, it makes the caller feel like there is some action they can take and properly put the investigative burden on their carrier. More likely, their carrier will give them options for blocking the number instead of opening a nuisance incident.
Regards,
Mike
Mike Ray, MBA, CNE, CTE Astro Companies, LLC 11523 Palm Brush Trail #401 Lakewood Ranch, FL 34202 DIRECT: call or text 941 600-0207 http://www.astrocompanies.com
-----Original Message----- From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Peter Beckman Sent: Wednesday, May 25, 2016 12:00 AM To: VoiceOps<voiceops at voiceops.org> Subject: [VoiceOps] Phone Spoofing - Anything we can do?
Have a customer, they are getting calls on their number that indicate another party is spoofing their number.
"You just called me." "I just got a call from this number?"
And it isn't them, not through my systems.
Has anyone figured out a process that is even somewhat effective in hunting down and ending the spoofing, while actually getting that Truth in Caller ID Act violation filed against them?
Or is it just as impossible as I suspect?
Beckman --------------------------------------------------------------------------- Peter Beckman Internet Guy beckman at angryox.com http://www.angryox.com/ --------------------------------------------------------------------------- _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops
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