I recently updated the OS on my UC520 the newly released version and tried my hands on a 9971. I was able to add a regular like to the phone to test calls. I am using the latest CCA to program the system. I don't see any options on CCA to add PARK extensions or take advantage of all the line buttons. Does anyone else have this issue? Any work around to it?
So far I have only seen the ability to add this via CLI. I am working on this configuration and I will post when I get it tested. I had this working on a CME Router now I just need to port it to the UC.
We never did, we ended up returning the 9971 as most of the features are/were not supported on the UC series. We purchased it for the receptionist, but you could use any of the addon modules for the 9971 on the UC560.
We ended up taking a large hit on the "restocking fee" on the 9971 and 2 addon modules.
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