Block "unknown caller" calls - at CCM or gateway

Answered Question
May 20th, 2009

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.

thanks,

Will

I have this problem too.
0 votes
Correct Answer by Paolo Bevilacqua about 7 years 6 months ago

voice translation-profile block

translate calling 100

voice translation-rule 100

rule 1 /^$/ reject

voice-port x/y/z

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.

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Paolo Bevilacqua Wed, 05/20/2009 - 06:49

Are you using h.323 or mgcp ?

Note however that many valid calls do come without a calling number.

Correct Answer
Paolo Bevilacqua Wed, 05/20/2009 - 07:17

voice translation-profile block

translate calling 100

voice translation-rule 100

rule 1 /^$/ reject

voice-port x/y/z

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.

will.alvord Wed, 05/20/2009 - 07:21

Agreed. Some would call that job security. I'm with you -- it's an annoyance.

Anyways... Is there a way to do this at the CCM level?

thanks again,

Will

Paolo Bevilacqua Wed, 05/20/2009 - 07:22

Not sure, but I don't think so.

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