[asterisk-users] Always 486 Busy Here for anonymous calls

[jg]

>
> I am running an Asterisk PBX 11.6-cert10 with about 20 SIP phones and recently one of the 
> phones (Snom 720) always returns "486 Busy Here" when calling anonymously. It's only a single 
> phone, the rest works as expected. I checked the phone's settings and there are no differences 
> in the configuration compared to the rest.
>
> I do not expect that Asterisk is the problem, but does someone know under which circumstances 
> this kind of problem can occur?
>
>
This is just a feedback that the problem is now solved. A user had the great idea to add 
"anonymous at anonymous.invalid" to the local deny list. Very funny.

jg