Re: [asterisk-users] Block Spam Calls
This is exactly what I do - “press 1 for a human” Works great From: asterisk-users on behalf of Greg Woods Sent: Thursday, December 12, 2019 6:34 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] Block Spam Calls Most spam calls are robocalls these days. At my house, I can block pretty much all of the robocalls by requiring the caller to take some action before ringing the phones. In our case, the action is just to dial 1 for my wife or 2 for me. The only difference it makes in the end is which voice mailbox the caller gets transferred to if no one answers, but since asterisk so programmable, there are a lot of ways to accomplish the basic concept. I can see tons of calls in my log that never get through to bother us. --Greg On Tue, Dec 10, 2019 at 8:58 AM Alexander Perkins mailto:alexanderhenryperk...@gmail.com>> wrote: Hi All. Does anybody know if Google/Android has an API I can sign up for that will allow us to query the caller ID and find out if it is spam or a robocaller? I ask because we've had increase in spam calls and I'd like to simply play dead air or something really annoying. Thanks all, Alex -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Freepbx / Asterisk PJsip multipe devices
I think the question was "how do I do this with FreePBX", and a dialplan suggestion is likely difficult to do that way. I use groups: each phone has a different extension number (e.g., 601, 602, etc), and I created a dial group (600) which contains the phones' extensions. Then, a caller merely needs to dial 600 and it'll ring at several places. I'll leave it as an exercise for the reader to figure out how to dial from extension 601 but supply callerid = 600. -Original Message- From: asterisk-users [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Mitch Claborn Sent: Wednesday, February 06, 2019 9:42 AM To: asterisk-users@lists.digium.com Subject: Re: [asterisk-users] Freepbx / Asterisk PJsip multipe devices Eric sent you a link of how to do it at the PJSIP level. To do it in the dial plan, something like exten => _6XXX,1,Dial(PJSIP/SoftPhone/HardwarePhone) Mitch On 2/6/19 8:32 AM, basti wrote: > that was my first idea. > > and how should an other user know which number he should dial? > > user a: soft phone extension 100 > hardware phone extension 101 > > > On 06.02.19 15:25, Mitch Claborn wrote: >> You can do this in the dial plan. Register the devices separately and >> include both addresses in the Dial() command. >> >> >> Mitch >> >> On 2/6/19 8:16 AM, basti wrote: >>> In other words. >>> >>> I there a way that both phones are ring with only one extension? >>> >>> On 06.02.19 15:05, basti wrote: both phones are in the same net. when the soft phone is shut down, on hardware phone only an led is flashing to show an incoming call but no sound. both phones use the same extension. that is the reason why I use pjsip. On 06.02.19 14:59, Antony Stone wrote: > On Wednesday 06 February 2019 at 13:54:44, Mark Wiater wrote: > >> These two phones are not using the same extension, are they? > > If you shut down the softphone, does the hardware phone then ring? > > > Antony. > >> On 2/6/2019 8:49 AM, basti wrote: >>> both phones are registered. and the hardware phone can also make >>> calls. >>> but an incoming call is not displayed and also not hearing. >>> >>> Call Waiting is also disabled. >>> >>> On 06.02.19 14:07, Cyril Alberts wrote: Hi, look at your registrations, is the hardware phone registered? if yes, which phone vendor do you want to connect? can you make outgoing calls with hardwarephone? BR Cyril Am Mittwoch, den 06.02.2019, 13:00 +0100 schrieb basti: > Hello, > > I have some user that had have a hardwarephone and an > softphone. I use pjsip driver and set "Max Contacts = 2" to > have register both at the same time. > > But Only the softphone is ring. the hardware phone is mute. > > How can i fix this? > >>> >> > -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] OT: Explain where mailing list bouncing comes from ?
I believe that Digium is using Mailman already (hence the in-the-clear monthly password reminders). I suggest that whoever administers the Mailman system should probably be able to tell why Gmail is bouncing (sometimes), and if not, there's plenty of active Mailman help available: Mailman-Users mailing list mailman-us...@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Adam Goldberg AGP, LLC +1-202-507-9900 -Original Message- From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Dave Platt Sent: Friday, June 16, 2017 1:34 PM To: asterisk-users@lists.digium.com Subject: Re: [asterisk-users] OT: Explain where mailing list bouncing comes from ? I'm not sure of the precise specifics of how Digium runs the list, but this sort of problem has been a "known issue" with mailing list distributions ever since SPF and similar technologies showed up, almost a decade ago. DomainKeys and DMARC makes it more of an issue, but the overall problem is not new. I had to switch mailing-list packages (from Majordomo to GNU Mailman) for the lists I run, and configure Mailman properly to avoid the worst of the problem. In my experience, the problems affect mailing lists where: - The mailing list software retransmits an incoming message to subscribers, using the same sender address (in the SMTP transaction and/or message headers) that the original sender used. and - The sending domain has some sort of anti-forgery technology in place - either SPF or DomainKeys can trigger the problem. When such a message is retransmitted, one of several things can happen when it hits a mail server that does anti-spoofing enforcement: (1) "Hmmm. This message says it comes from j...@example.com, but the example.com domain has an SPF record which says that only the following five IP addresses are authorized mailers for this domain, and suggests a policy of 'reject' for other IP addresses. This message is coming from an IP address which isn't on that list. Reject it." or (2) "Hmmm. This message says it comes from j...@example.com. It has a DomainKeys signature from that domain, which covers the sender ID, subject, and message body. The signature doesn't match" [sotto voce, the Subject header was modified by the mailing list software to include the group name] "and example.com suggests rejecting messages which say they're from example.com but have bad signature. Reject it." There are almost certainly other, similar scenarios. As a result, messages of this sort will tend to "bounce" from hosts that implement forgery protection, and the mailing-list software will often react to a flurry of such bounces by unsubscribing the intended recipient from the list. None of the workarounds for this are perfect - they all have side effects. [A] Recipients who are being unsubscribed because gmail (e.g.) is bouncing such messages, can change their subscription to the mailing list to "daily digest". Mailman (and I believe most other mailing list packages) send out digests as new messages, with their own domain as the return address, thus avoiding the problems. [B] For SPF, the mailing list software can be configured to "take ownership" of the message... rewriting the sender address into a new form which doesn't break SPF rules. Examples for a message from j...@example.com might be Joe at example.com via Foobar mailing list <foo...@mailer.com> Joe <joe-at-example-dot-...@rewritten.mailer.com> and so forth. GNU Mailman has the ability to do something along the lines of the first example. It's the configuration I use on the small mailing list I run. I believe it also adds a Reply-To: header to the message to "point back to" the original sender. It's possible to rewrite/substitute the message used in the SMTP session, but leave the original sender's address intact in the message headers. This will be acceptable to many (but not all) systems that check SPF. [C] For DomainKeys... well, if the mailing list software is going to make any changes at all to the headers on messages it's relaying, or change the message body at all, it should strip out any DomainKeys signature that might exist on the message. Or, it can send the whole inbound message (unmodified) as a MIME attachment within a new message it originates. This leaves the signature intact, but can be hard for many mail programs to handle gracefully. It would be up to Digium to do [B] and [C] for the mailing lists, if they so choose. Individual subscribers can do [A] to reduce the risk that they'll be unsubscribed from the list whenever an SPF-protected message is sent through the list. -- _
Re: [asterisk-users] How to detect fake CallerID? (8xx?)
Seems like this is the best idea (challenge-response), a callback. No matter the callerid, you don't know where the caller is. But if you place a call BACK to the callerid, it's going to go to the destination. Then you either need the phone to be answered, or the phone to be answered and and the challenge entered. Adam Goldberg AGP, LLC +1-202-507-9900 -Original Message- From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of J Montoya or A J Stiles Sent: Thursday, May 11, 2017 7:48 AM To: Asterisk Users Mailing List - Non-Commercial Discussion <asterisk-users@lists.digium.com> Subject: Re: [asterisk-users] How to detect fake CallerID? (8xx?) On Wednesday 10 May 2017, Steve Edwards wrote: > On Wed, 10 May 2017, J Montoya or A J Stiles wrote: > > Presumably your staff carry mobile phones. What about an app that > > gets the ID of the cell tower to which it is connected, and passes > > it and the SIM number in a HTTP request to a server you control? > > The problem is that they are supposed to use the 'site landline' to > confirm presence -- not their cell phone with the spoofed CID. Yes; but the whole point is that the caller ID from the site landline is no longer reliable enough as evidence, by itself, that somebody is actually there. A custom app could read the ID of the cell tower to which it was connected -- or even the phone's GPS co-ordinates -- and transmit that back to base over the Internet. Preferrably with some sort of precautions to make the request harder to forge (i.e., *not* just a plain HTTP GET with the MCC, MNC, LAC and CID in the query string). If your app makes its connection via the site's wi- fi (which will require the co-operation of the client) as opposed to the mobile network, so much the better, as there will be an IP address against which you can match. If you insist to use the site landline for your authentication, you could extend the protocol to a full challenge-and-response as follows: Play a series of digits down the line to the caller, return the call as soon as they hang up, and ask them to dial the same digits they just heard. All this can be done in the dialplan (you might need to record some announcements of your own, such as "Please memorise the following digits" and "Please dial the digits you heard in the last call"). Intercepting incoming calls *to* a number is much harder (usually requiring the co-operation of telcos, unless the interloper has access to some equipment through which they know that the call will be routed; that potentially includes your Asterisk, but any tampering there would be evident) than falsifying outgoing calls *from* a number. It would be much more fun to mount a "sting" operation to catch the perpetrators red-handed (say, falsely set off a fire alarm while you know they are slacking off down the pub instead of looking after the site like they are paid for) . but maybe I have just been watching too many detective dramas on TV! -- JM Note: Originating address only accepts e-mail from list! If replying off- list, change address to asterisk1list at earthshod dot co dot uk . -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] How to detect fake CallerID? (8xx?)
It's approximately impossible with current infrastructure. https://transition.fcc.gov/cgb/Robocall-Strike-Force-Final-Report.pdf Adam Goldberg AGP, LLC +1-202-507-9900 -Original Message- From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Doug Lytle Sent: Wednesday, May 10, 2017 11:24 AM To: Asterisk Users Mailing List - Non-Commercial Discussion <asterisk-users@lists.digium.com> Subject: Re: [asterisk-users] How to detect fake CallerID? (8xx?) >>> I ask my SIP provider to include more headers to show the real ANI? >>> What would that service be called? If it's anything like a PRI provider, I've been told they only way to get true CID, in those instances, would be to provide a 1-800 number (US) for them to call. Then you'd get correct CID, since you're paying for both legs of the call. I do not know if this holds true for a SIP provider, Doug -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
