Hello, can you continue to use the SGs at the secondary locations as RED devices with an XGS or should you switch to an SD-RED 20 or SD-RED 60? Thank you very much

Hello - I have an XGS 2100 at HQ. We were using a RED device to connect the branch office Phone and LAN traffic via VPN to the HQ PBX/LAN and everything worked fine. Given the rollout of the latest OS, the RED is no longer compatible, so we are attempting…