[cisco-voip] CUCM 8.1.3 > Blocking inbound calls

[Ryan Huff]

Right, flip all incoming into a filter partition that 'screens' ani and let everything pass that doesnt match 'bad' ani patterns is how I do it too.

But with ani spoofing, it is becoming a less effective measure.

When I worked for a service provider, this how we did it. Anything more aggressive than that and you usually upset customers. Plus, most customers understand the concept of call blocking based on caller-id and expect it to work that way.

Now in the case of a truley annoying bot/spammer, you can forward the line to a voicemail with the sit tone (the three tones of happiness) recorded at the beginning and after a round or two it usually clears up.

Most bot dialers listen for sit, so they can clear their list of unallocated numbers.

Thanks,

Ryan

-------- Original Message --------
From: Brian Meade <bmeade90 at vt.edu>
Sent: Tuesday, May 12, 2015 05:01 PM
To: "Jason Aarons (AM)" <jason.aarons at dimensiondata.com>
Subject: Re: [cisco-voip] CUCM 8.1.3 > Blocking inbound calls
CC: cisco-voip at puck.nether.net

>The way I do it is create a new partition that only lives in the gateway
>CSS so it shouldn't have any impact on anything besides incoming calls from
>the gateway.
>
>On Tue, May 12, 2015 at 3:26 PM, Jason Aarons (AM) <
>jason.aarons at dimensiondata.com> wrote:
>
>>  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
>> *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> 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
>>
>>
>>
>>
>> *Consider the environment - Think before you print*
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>> itevomcid
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>
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