I am running Call Manager System version: 126.96.36.19990-1. I have a few lines that are used for AV purposes that keep getting interrupted by calls. Is there an easy way to block ALL inbound calls to these selected lines? I considered a separate partition, but I want to make sure no calls are prevented from being dialed out.
The only way CUCM has to segment access is CSS and partitions. You can easily configure that inbound calls do not reach the phones by changing the inbound CSS of the GWs.
If you want the phones to dial out just make sure their CSS has the route patterns to PSTN.
It's extremely easy to configure scenarios where you can reach someone but the other guy cannot reach you, it's all CSS and partitions.
if this helps, please rate