Getting constant calls from 2001 and 9001, HELP!
jjtricket:
Using obi202 with GV, no router, directly connected to modem using Comcast/Xfinity
Just started this morning, has happened before but cannot find previous threads.
update - constant calls from 5000, 4000, 3000
Any help would be appreciated
Mango:
Since we don't know what VoIP equipment you're using, nor what router, nor what service provider, nor what configuration you have it all in, we can only offer some general advice. Wild guess: your OBi2 got updated to use Google Voice with SIP and now your ATA is accepting scanning traffic.
Preferred solutions, in order of most secure to least secure.
1) Disable port forwarding and DMZ on your router, if you have set it up.
2) Set "strict UDP session control" on your router, if you have this option.
3) Disable SIP ALG or SIP Helper, if your router has this.
4) Go buy a better/more secure router, such as any router compatible with Tomato firmware, if your problem hasn't been solved by this point.
5) Use OBi Expert Configuration to enable the setting X_AcceptSipFromRegistrarOnly.
6) Use OBi Expert Configuration to change the X_UserAgentPort to a high/random number between 20000 and 65535, for example, 39119.
Good luck. Let us know how things go.
jjtricket:
Thanks Mango, I updated what I have in original post, no router.
Where is setting X_AcceptSipFromRegistrarOnly at ?
Mango:
It's in Voice Services >> SPx.
jjtricket:
Thank you very much Mango your advice works!
The calls were coming in every 2 mins, it was crazy
What are they trying to accomplish, any idea?
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