There is a thread currently running on African forum but this warrants wider coverage!
30th August the president of Kenya Air Traffic Controllers' Association wrote of the following serious concerns.
1.Flights inbound Nairobi,from Addis are calling Nairobi control without prior estimates.
2.There have been several incidents of loss of separation between aircraft at the transfer point,due wrong,or no estimates from Addis.
3.There has been one serious RA event between B737 and B767, both maintaining FL360, with no prior co-ordination from Addis.
4.Addis airspace is currently manned by retired Controllers with no current validation,who have no understanding of current airspace procedures,who are overwhelmed,and unable to copy correct estimates.
5. The few estimates passed by Addis to Nairobi are incorrect in type,callsign,and often with incorrect destination.
6.Aircraft are entering Kenyan airspace at flight levels different to those passed by Addis Controllers.
7.Some flights from Addis are entering Nairobi airspace at incorrect levels for direction of travel.

"These are some of the serious safety issues that we continue to experience in the airspace,as a result of the standoff between Ethiopian Controllers,and their management!
We urge all stakeholders to do everything within their abilities to ensure that whatever issues the Ethiopian controllers have with their management is solved in an environment of give and take,so that normal operations can be restored in the Addis Ababa airspace!

IFALPA today reminding all of the IATA in-flight Broadcast Procedures for this area.