Originally Posted by
D.S.
The pilot of that Japanese plane is quoted as saying
“We managed to establish contact with MH370 just after 1:30 a.m. and asked them if they have transferred into Vietnamese airspace,” the pilot reportedly told New Straits Times. “The voice on the other side could have been either Captain Zaharie (Ahmad Shah, 53,) or Fariq (Abdul Hamid, 27), but I was sure it was the co-pilot."
The "Japanese plane" you're mentioning, may in fact have been MH88:
Post 3875
Chances are that the MH88 pilot knew the MH370 (co-)pilot he was talking to.