Aaargh... right you are....
I forgot i had done this a few years ago on the site, you post jogged the memory...
http://www.kaiserscross.com/76001/282001.html
Each Armee-Oberkommando had a staff officer of the
Telegraphentruppen attached to it who acted as advisor and was responsible for
technical details relating to communications. Under his command was an
Armee-Telegraphen-Abteilung, a Funker-Kommando and 2 Schwere Funkenstationen.
..after 1917...
The Akofern and Akofunk fell away and an
Armee-Nachrichten-Kommandeur (Akonach) took over all the Nachrichten units
within the A.O.K.s, excluding those under Generalkommando or Divisional
command.
The Akonach was responsible for the coordination,
readiness and communication regulations and security within his area of command
and were centrally numbered from 1-26.
But the OHL officer still seems not to fit in 100%...