I am having some issues with a Plantronics Headset SP12 headset.
When you connect it to a 7941 Cisco IP Phone to the headset jack there is no sound at all, but when you connect it to the handset jack it works perfectly.
Is this headset model compatible with Cisco IP Phones??? (we have tried to use it with different models and we have the same behavior), do I need to change anything on the CM configuration to make these headsets work??? or should I get an amplifier for the headset (and what model) ???.
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.