SIP scanners
Hortoristic:
Don't they just need to push out a valid caller id to bypass this string?
ianobi:
Hortistic,
That's true, but oddly they don't seem to do that very often. Users still report Caller IDs of "1000", "100" etc. Experience seems to show that some version of that string and changing X_UserAgentPort from 5060, 5061 etc to maybe 5070, 5071 etc seems to work.
Hortoristic:
Are we limited to what VoIP Ports we can use, can we use some really weird port numbers?
ianobi:
I once asked Stewart exactly that question (he knows more about routers etc than me). He said in theory you can use any port you wish. I assume it has to be one not being used for something else.
Hortoristic:
Someone posted this below, I see they mentioned it would ban among other things, numbers less than seven digits - but my SIP account is mainly used for incoming UK numbers - such as 447833384589, will using below string ban this also - I don't want it to:
{(?|x|xx|xxx|xxxx|xxxxx|xxxxxx|un@@.|anon@@.):},{ph}
This will ban calls with no Peer Number, any Peer Number less than seven digits, Peer Number "unknown" and Peer Number "anonymous".
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