I have never had success using the device.prov.upgradeServer parameter. Polycom forums and documentation seems to state that this only affects the firmware upgrade utility in the web interface, and breaks automatic firmware upgrades via provisioning.
I created a pull request a while back to add the APPLICATION tag to allow for firmware upgrades (https://github.com/fusionpbx/fusionpbx/pull/6146) but it needs some modification to bring it forward to the current master. In the meantime, it looks like someone has submitted a pull request (and it has been merged) that further complicates things by splitting the provisioning code for many models of Polycom devices to separate files.
Has anyone had success where I have failed, and if so, care to share how you got firmware updates to work for your Polycom phones?
I created a pull request a while back to add the APPLICATION tag to allow for firmware upgrades (https://github.com/fusionpbx/fusionpbx/pull/6146) but it needs some modification to bring it forward to the current master. In the meantime, it looks like someone has submitted a pull request (and it has been merged) that further complicates things by splitting the provisioning code for many models of Polycom devices to separate files.
Has anyone had success where I have failed, and if so, care to share how you got firmware updates to work for your Polycom phones?