Nonstop phantom calls from PP1 / OBiTALK Service
Mike1111111:
I tried unchecking that box twice and it didn't work. The device reboots and the box becomes checked again. That box only appears when logging into the device directly. It does not show up in the OBiTalk portal.
SergeL:
I've followed @azrobert suggestion to put {(xxxxxxxxx):ph} into Voice Services -> ObiTalk Service -> InboundCallRoute. So far it's been quite.
Mike1111111:
I have gone 20 minutes without a call, so I think the change I made to InboundCallRoute worked.
I removed {ph,ph2} from the list.
old: {(290944186)>(xx.):SP1},{(290944186):aa},{ph,ph2}
new: {(290944186)>(xx.):SP1},{(290944186):aa}
The other suggestion of using {(xxxxxxxxx):ph} likely works as well.
Sheffield_Steve:
The Obi boxes are normally used as SIP clients and thus no special setup is required for the Internet on consumer devices.
If the Obi is given a direct open inbound connection to the internet, then that will allow VoIP spammers to make the calls you have experienced. (And is bad for security in general)
Quote from: Mike1111111 on January 19, 2021, 09:20:33 am
Regarding the question about how my OBI is connected, I have a Netgear Nighthawk Router running DD-WRT firmware and I have UDP port 10,000 pointed at the OBI202's static IP address.
I am using Google Voice with two phones plugged in.
Mike1111111:
In my case, where my OBI is behind a router with a firewall and NAT service, that would not be the case that these calls are from a spammer. These are not spam calls, but rather dead-air scheduled calls from some automated process that went haywire.
The only port number that exposes my OBI to the outside world is UDP 10000, and disabling that port in my router did not stop these calls. To enhance security, I will change this to a non-default port now that I know where the setting is. I am assuming that changing the LocalPort in the portal changes both the source and destination. If the local port is now 12345, I would either map 12345 external to 12345 internal or map 10000 external to 12345 internal. I am not sure which is correct, so I will pick the first option and see if anything breaks.
I don't know what the OBiTALK Service does or what disabling it impacts. My phone has been working fine with none of these unusual calls for the past couple hours.
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