In order to alleviate your issues you will need to protect your voice traffic with QoS using a router that supports this. The phone proxy is going to work best where the end site has a solid connection and where delay and jitter are not an issue. We experienced issues when rolling out phones to home users and found that generally it is their upload bandwidth that is a scarce resource because providers typically hand out more bandwidth towards the home than from the home to the Internet in asymmetric configurations designed to optimize download bandwidth. We ended up deploying 800 series routers with the phones and then using QoS on the router to manage bandwidth available for the voice traffic.
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.