Is there a way to block calls with either no IE display or 'unknown caller'? I'm not sure if it's possible to do this with translation rules at the gateway because there's really no number to match on. I know in CCM I can set the Unknown Caller ID and Text fields to set the calling number and name on these calls. ...but I'm not aware of any ANI-based routing options in CCM.
Any ideas? I searched the forums for this but couldn't find anything other than MCID for some school bomb threats which is not applicable.
voice translation-profile block
translate calling 100
voice translation-rule 100
rule 1 /^$/ reject
translation-profile block incoming
Again, if you do this, chances are the customer will have you remove it after a while because too many calls are rejected.