Yay! I was able to implement network-wide the thing I mentioned in the previous post.
So now ECC is no longer restricted to port 5060.
The range of ports that'll work now are:
RSA UDP = 1-29999
RSA TCP = 1-5060,5063-29999
ECC UDP = 1-5060,5063-29999
ECC TCP = 1-5060,5063-29999
Ed25519 is still 5061 only, and Ed448 is still 5062 only.
The current widget still has 5060 hard coded for ECC, so I'll release an updated version soon, and update the openvpn configs so ECC defaults to 443 instead of 5060, then I'll announce the whole thing on twitter and https://cryptostorm.is/blog/