HELP- CUCM Issue

[vanguardslay]

I have a client that needs to setup a hotline that does not give any information about a person calling. When a external number calls this particular number it gives a phone number, and caller ID info (sometimes a name, sometimes a city,state). I have blocked the number through a CSS transformation under Remote Calling on the actual phone itself in CUCM. But I cannot stop the caller ID info from passing. Any ideas?

[Enes Simnica]

@vanguardslay U’ll want to block Caller ID at the CUCM level instead of just the phone. And on the inbound gateway/trunk u can use Calling Party Transformation Masks or apply a Calling Line ID Presentation (CLIP/CLIR) restriction so that CUCM strips the caller info before it’s presented to the phone.

Check these docs G; 

• https://www.cisco.com/c/en/us/support/docs/unified-communications/unified-communications-manager-callmanager/118885-config-ucm-00.html?utm_source=chatgpt.com
• https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/manual/cmeadm/cmeclid.pdf
•  

hope it helps and enjoy ur weekend! 

-Enes
CCNP x2 Enterprise
Your Friendly Networking Ninja