I don’t know if you noticed but the Allnet SFPs are available now.
I got one ALL4781-VDSL2-SFP via Innet and it worked on an Telekom VDSL (100/40 via 1&1).
I tried it with a Mikrotik routerboard which I had at hand but can give it a try with an Omnia when I’m back there in May.
I did contact Allnet and was provided with some windows software (newer version what I got from Versatek but no idea if the config files are specific to a vendor) which seems to actually work to get (line) stats.
@MiKe Yes, seen this thread in fact I’m “breili” over there 
@pmatous Did Versatek provide the software to you? Does it work? Note that if it complains about some DSL dll missing then you need to install wireshark (it is looking for libpcap).