but you better watch your TCAS and listen carefully 126.9
Good advice BUT that always assumes that the adversary switches on the transponder and transmits on 126.9
It is more likely that the conflict will be with the above rather than the good scheduled carriers. A moonless night over Africa in the clouds could result in a fraught several hours.
To the poster who said shame on those who doubted the ability of the African states to implement RVSM I urge caution; 1 swallow does not a summer make; ie 1 night/1 week without incident does not spell success.
Next down through the conflict zone in about 2 weeks with a full moon