I met Yealink and asked them why they had it enabled by default. They said a lot of customers have different proxies and they would get more support tickets if it was set to disabled. For firewalls how would this not help? If they have a stateful firewall it would only accept packets where there is a session out. So if they don't send a packet out there should be none allowed back.
On Fri, Jun 11, 2021 at 12:01 AM Trent Creekmore <tr...@lindows.org> wrote: > A firewall is not going to help. On many SIP telephones this can be an > issue. On Yealink they have a setting labeled “Accept SIP trusted Server > only” which will cause those ‘ghost calls’ to stop. I am not sure why they > do not have it enabled. Seems this should be default on all SIP telephones > these days. > > > > I have not seen such a setting on LinPhone, but I would of thought such > security would be in the code. > > > > > > > > *From:* Linphone-users <linphone-users-bounces+trent= > lindows....@nongnu.org> *On Behalf Of *Dovid Bender > *Sent:* Thursday, June 10, 2021 6:48 PM > *To:* linphone-users@nongnu.org > *Subject:* Re: [Linphone-users] Random Incoming calls > > > > Without knowing your set up if I had to guess the calls you are getting > are most likely from attackers out there that are looking for vulnerable > phone systems to compromise. They will send calls to random IP's and if > they find a vulnerable system they make calls on the phone systems owner's > expense. Some phones have an option to disable such calls but I don't see > one on Linphone (at least not in the version I have here). A simple > firewall should be able to block such calls. > > > > On Thu, Jun 10, 2021 at 5:36 PM Ray Martel <ray.mar...@audacy.com> wrote: > > I am using Linphone as a way to connect to a comrex ACCESS for radio > reports. > > Recently I keep getting incoming calls that just don’t stop. This has > happened with some but not all of us using this. > > Any idea of how to change settings to stop this? > > The second thing is that occasionally I can’t get an ip address on some > installs. Instead I get a weird number after my name instead of an IP. > > > > Would really love to email with someone because this works great for me > and I would like to fix these small but very annoying problem. > > > > > > > > *Ray Martel* > > Executive Producer WCBS Mets Radio Network, > > WCBS Newsroom Operations Manager > > > > *Audacy | New York* > > 345 Hudson St, 10th Fl > > New York, NY 10014 > > O: +212-524-2904 > > M: +917-414-0219 > > ray.mar...@audacy.com > > WCBS 880 <https://wcbs880.radio.com/> > > [image: WCBS880_MetsRadio_pos_rgb] > > > > > > _______________________________________________ > Linphone-users mailing list > Linphone-users@nongnu.org > https://lists.nongnu.org/mailman/listinfo/linphone-users > > _______________________________________________ > Linphone-users mailing list > Linphone-users@nongnu.org > https://lists.nongnu.org/mailman/listinfo/linphone-users >
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