Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Blocking inbound calls from specific numbers.

I'm trying to find a way to block inbound calls from the CO from specific phone numbers. Our phone company says they can't do it on their end.

I've got CCM 3.2(2c) using a 6513 with a 6608 card as a gateway using ISDN PRI connections. TAC says there is no way to block or route calls based on the callers number in this configuration. They say the only way to do it is to have the PRI's terminate on an IOS device setup for H.323. (Changing all my hardware isn't an option!)

Any ideas on ways to do this in CallManager? Does 3.3 offer any options? I've got an ICD server if there is a way to kludge it to do this. (I only need to worry about these calls to a couple of our internal numbers.)


Re: Blocking inbound calls from specific numbers.

TAC is right, you need an IOS/H.323 gateway to be able to block based on CALLING number.

You could write a script in CRA that looks at the calling number and rejects the call though.

CreatePlease login to create content