[cisco-voip] CUCM 8.1.3 > Blocking inbound calls

[Jason Aarons (AM)]

Creates issues with CER and CUEAC unable to do the CTI Redirect back to end user phones.

Anyone aware of a Service Provider solution where you can call and block calls before they get to you.

I always argue that real spammers (IRS, Microsoft Support) spoof and change numbers regularly, thus circumventing this easily.  Only a crazy old person calling from home to same office number does it work for.  Be nice if a MCID type service could be done easier.

From: Ryan Huff [mailto:ryanhuff at outlook.com]
Sent: Tuesday, May 12, 2015 3:38 PM
To: Jason Aarons (AM); Brian Meade; James Dust
Cc: cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] CUCM 8.1.3 > Blocking inbound calls

You can try this technique http://ryanthomashuff.com/2014/11/call-blocking-by-caller-id/ which uses the "route next hop by calling party number". Works well for ANI call blocking; I'm using it to keep spam numbers off of uccx call center triggers. You have to apply it at the top of the dial plan though.

-r
________________________________
From: jason.aarons at dimensiondata.com<mailto:jason.aarons at dimensiondata.com>
To: bmeade90 at vt.edu<mailto:bmeade90 at vt.edu>; james.dust at charles-stanley.co.uk<mailto:james.dust at charles-stanley.co.uk>
Date: Tue, 12 May 2015 19:26:59 +0000
Subject: Re: [cisco-voip] CUCM 8.1.3 > Blocking inbound calls
CC: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
The Blocking Calls based on Calling Party Number has issues with CTI Redirects (UCCX/CER/Attendant Console) in that they won't work on transfers to agent/phone/operator.  If you don't use any CTI apps you would be good.

In IOS you can do a translation rule to reject but it's limited to 100 rules.

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Brian Meade
Sent: Tuesday, May 12, 2015 2:08 PM
To: James Dust
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] CUCM 8.1.3 > Blocking inbound calls


If you're using H.323 or SIP for the voice gateway, easiest to block inbound via translation-profile on the incoming dial-peer.

If you have a lot of numbers you want to block or are using MGCP, you can do it in CUCM- https://supportforums.cisco.com/document/71966/blocking-calls-based-calling-party-id?page=1



On Tue, May 12, 2015 at 1:52 PM, James Dust <james.dust at charles-stanley.co.uk<mailto:james.dust at charles-stanley.co.uk>> wrote:
Evening all,

I have had a request to block a specific number from being able to dial into our cluster, but have nothing currently setup to accomplish this.

The gateway is a Cisco C2921 running SPA.154-2.T.bin

Is it achievable to block the call on the gateway, or configure this somehow on CUCM.

Any assistance appreciated.

Regards

James


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