Are you saying that from phone A, you can contorl the Class of Restriction on phone B?
If so, then you could look at using a product like UCCX to take input from phone A, and set CoR for phone B, then utilize PLAR for phone B, such that all calls route through UCCX, checking for CoR before completing the call.
Phone A > UCCX > PIN > Phone To Set > Toggle CoR > End
Phone B > PLAR > UCCX > Get Digits > Check CoR > Accept or Reject > End
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Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.