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Re: [Linphone-users] Automatically receive calls from unknown numbers


From: German Cancio
Subject: Re: [Linphone-users] Automatically receive calls from unknown numbers
Date: Sat, 26 Mar 2022 21:09:28 +0100

I guess the “call incoming” also refers to the user appearing as 100/sipvicious 
in the image you attached. SIPvicious is a toolkit for auditing SIP-based 
systems. Probably your SIP server isn’t properly protected and/or allows for 
external non-authenticated SIP INVITEs, so it’s an easy prey for port scanners 
using tools such as SIPvicious.. or worse, your client has an unprotected SIP 
port open to the public and therefore you are directly exposed to portscans.

Cheers Germán


> On 26 Mar 2022, at 20:12, Tiến Đức Bùi Văn via Linphone-users 
> <linphone-users@nongnu.org> wrote:
> 
> 
> Hi !
> 
> I have used linphone SDK to build a phone calling application. It works 
> pretty well, but lately it's been receiving calls from unknown numbers that 
> aren't in my definition, pick up the phone and don't answer. 
> 
> Is this the error of my SIP server system? How do I fix it? Thank you.
> 
> I have attached a picture of an unknown number calling linphone SDK
> 
> Thanks
> 
> 
> <Screen Shot 2022-03-27 at 02.05.22.png><Screen Shot 2022-03-27 at 
> 02.05.32.png>_______________________________________________
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