Getting constant "calls" from 100 and 10001
mattress:
Just today, I started to get CONSTANT calls from Caller ID numbers 10001 and 100. I've checked the call logs with my VOIP provider, and there aren't any. So my only conclusion is that my OBi is doing this. Any ideas, as this is driving me insane?
Taoman:
Quote from: mattress on January 02, 2019, 01:55:56 pm
Just today, I started to get CONSTANT calls from Caller ID numbers 10001 and 100. I've checked the call logs with my VOIP provider, and there aren't any. So my only conclusion is that my OBi is doing this. Any ideas, as this is driving me insane?
You're getting hit by SIP scanners. Enable X_AcceptSipFromRegistrarOnly in OBi Expert Advanced Configuration.
Voice Services-->SPx Service-->X_AcceptSipFromRegistrarOnly
Sheffield_Steve:
You have your Obi exposed to the "incoming" internet (Not good). As this has just started you probably made a change to your router, etc.
drgeoff:
Quote from: Sheffield_Steve on January 03, 2019, 06:25:48 am
You have your Obi exposed to the "incoming" internet (Not good). As this has just started you probably made a change to your router, etc.
Not necessarily and most probably not caused by a change of router. Most SIP ITSPs use port 5060. That port (or whatever one) needs to be permanently open so that you can receive SIP invites for incoming calls. SIP scammers target such ports. There is nothing a typical home router can do about it as most do not have user configuration facilities to discriminate between packets from the IP address of your ITSP and packets from other addresses. OBi devices do, as per the advice above from Taoman.
Sheffield_Steve:
Sorry, It's NOT required to have port 5060 open on your router for incoming calls unless you have a SIP phone system.
The Obi or other SIP software on devices such as phones makes and keeps an outgoing connection open on that port. Having any port open on your router for incoming traffic is a big security risk.
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