Call Forward on Polycoms with Shared Call Lines

We recently changed (corrected) one of our config files to properly apply the reg type to our reg.x.type parameters. After doing this call forward quit working on all shared call devices. We recently deployed Broadwork’s UC-One so we have a lot of SCAs on devices. After going around a bit we found the following combination of tags had to be applied in order for server controlled call forwarding to work on Polycom UC devices.