Fax: How to block spam faxes

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  • Updated 6 days ago
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Everyday I get a number of faxes on my Ring Central phone line.  
These are all SPAM.

I would like to block any faxes to my mobile phone

I would like to NOT have a recorded message show up that is just a bunch of fax noises
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ROBINSON

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Posted 3 years ago

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Kim, Alum

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Robinson - You have a few different options here: 

1) Block the number from your User Settings > Screening Greeting and Hold Music select Blocked Calls at the bottom. 
    Blocking these numbers will block both voice and faxes from the specific number.  If you set the number to "Voice Only" then you will get the voicemail with the fax tone. 




2) If there is multiple numbers to Block then it may be faster to select a bunch of the number at once from the Call Logs > select number > Block

(Edited)
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ROBINSON

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Is there a way to block all faxes on my line?

The phone numbers change all the time.

Each fax show up as a message I have to listen to.

My real phone calls are burred in all these fax messages delaying my response to my customers.
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Brandon, Champion

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So you are getting voicemail messages with fax tone and not fax notifications with attachments?  Is your extension set to voice and fax or voice only?  I would think when set to voice and fax it should handle the faxes separately and let you manage them separately.
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Saadet - Community Support, Official Rep

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Hey Tom,

This could be due to the nature of the spam fax, it's possible that our system isn't able to recognize it in time to direct it properly. A few things you could do to help give our system more time would be to set your User Greeting and Audio While Connecting. 
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ACCOUNT

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So we have 100+ users on an Office Premium Account, same basic problem of trying to stop what we believe are Spam Faxes.  We have several 800 #s (additional numbers) and they route to our main IVR.  I just went in and changed them to "Voice Only", but in reading this thread it doesn't look like that stops the faxes.  That being said, I did try a test fax which appears to have gone to the IVR, but did not actually ring thru to the sales agents. How does RingCentral's system handle a fax to a voice only number?
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ACCOUNT

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Concerns with blocking number
Seem to come from numerous Caller ID
Not seeing repeat calls from the same number
Caller ID could be spoofed and inaccurate
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Saadet - Community Support, Official Rep

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Hey ACCOUNT, faxes emit a specific tone/signal when dialing. So when your number is set to Voice Only, that number, in a sense, cannot recognize the fax signal and therefore it shouldn't go through. 
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ACCOUNT

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Even after setting to voice only, they are still coming thru.  They make it thru the IVR into the call queue and to an agent.  Blocking is not a good option because it is rarely the same number twice.  Just looking for a way to stop them.
This reply was created from a merged topic originally titled Un-blockable Spam Faxes.

Every week, I get two or three different spam faxes and if I were able to block the sender it would be no problem. However, they all come from "unavailable" and I'm unsure what I can do on my end to put a stop to these unnecessary spam faxes. 
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Mike, Official Rep

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Spam faxes can sometimes be hard to stop. Can you tell by the content of the faxes if they are from the same sender?  
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Chris Verdin

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In the Screening, Greeting & Hold Music setting click on Blocked Calls.  Then check the box that says faxes under Block Calls with no Caller ID:

This has prevented us from receiving unwanted faxes.  Won't stop all but it will reduce them dramatically. 

*It will also prevent legitimate faxes from being transmitted to you if they don't have a phone number assigned on their end.  So keep that in mind. 

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Cecile Glassy, Champion

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2287 USA based users, 2200 Polycom VVX 500 handsets 3800 DID lines

2018-09-13  We are really getting slammed today with Spam Faxes on our Ext 101 (main superadmin ext)  from a new spoofed number every 30 minutes   --- we already have block restricted numbers and numbers without a number --- any others having success at blocking these folks ?
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Saadet - Community Support, Official Rep

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Hey Cecile, blocking the number didn't work?
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Cecile Glassy, Champion

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Its a new spoofed number they send from every little while.   Yes i am blocking them as they appear but this is ridiculous.   Trying to learn if there's any other way to detect automated spoofer and universally block.
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Brandon, Champion

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I'll just leave this here: https://www.nojitter.com/post/240173839/will-spam-be-the-end-of-the-pstn

New research shows almost 50% of mobile calls will be spam in 2019, as further evidence of a growing epidemic.
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Jan Ferguson, Channel Partner, Champion

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If you block the numbers on the Super Admin extension, it will block those numbers (voice, and/or fax, and/or SMS) for the ENTIRE account. You must be an administrator to do this. The Super Admin extension, by default, is x101 (unless your organization has changed that).
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Paul Burger

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Does not solve the problem with being able to block ALL faxes from ANY number automatically.
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Jan Ferguson, Channel Partner, Champion

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If it's only faxes you need to block, configure the line to be a VOICE ONLY line.
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Paul Burger

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There is no option for voice only on the main line.
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ACCOUNT

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I configured several lines to voice only, but it did not stop them.  The calls make it thru the call queue to live agents.
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Cecile Glassy, Champion

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I am the SuperAdmin and do block these on the #101 SuperExtension --- my issue is they are coming on average every half hour from a different (unique) **SPOOFED*** number so blocking these are becoming a tedious activity - like i have nothing else to do all day.
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Jan Ferguson, Channel Partner, Champion

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Yeah....Unfortunately there's no way around that. I've experienced it as well, just not to that extent (maybe 3-4 a day max).
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Paul Burger

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Yep.