calls from unknown numbers, how to block in cucm

[esaa786]

Hi Teams

I have problem in my office DID, keep getting calls from a particular number. Below is the user complaint.

This number 860-273-9969 Keeps calling me - it says its Aetna - But when i try to answer no one speaks and then immediately hangs up never leaves a message 

is there any way to block this number through call manager? we are using cucm 14.x

immediate solution is appreciated.

Regards

Esa

[Roger Kallberg]

Have a look at this article. Blocking Inbound calls to Cisco Unified Communications Manager based on Caller ID 

[esaa786 · Accepted solution]

Thank you Roger for the useful Link for the issue

Regards

Esa

[Roger Kallberg]

You’re welcome. How come you selected your response as the solution to your question?

If you did that by mistake please update this by deselecting your reply as the solution and select my response for this.

[Vaijanath Sonvane]

You can also block calls based on ANI at Voice Gateway Level. Please see below post:

https://community.cisco.com/t5/collaboration-knowledge-base/block-incoming-calls-based-off-of-ani-incoming-or-originating/ta-p/3129236