"I am inclined to go along with Julian's view that this is a sideline that ends in a cul de sac."Actually, if the Captain is ill or is landed ashore or for any reason, cannot take command, the next in line is the Chief Officer or First Mate. The same thing happens down the ranks. In the Discharge Book at the end of the voyage, it is noted as "Acting".
Note that all the press illustrations appearing after the event show Titanic in a field of small ice with icebergs in attendance which was totally untrue.
If such a communication did occur on Saturday or Sunday, it would have happened half an hour into Murdoch's Watch and on Sunday night, the Lookouts Fleet or Lee would have remembered it. Fleet was asked if he had seen any lights before he left the crows nest and answered "no".
"17429. Did you see this light on the port bow before you left the crow’s -nest?
- No, "
If Titanic had been in communication with another vessel using her morse lights, it would have blinded the lookouts temporarily and it happening so soon before collision would have reminded Lee.
If this happened on Saturday, then as Sam pointed out, Titanic was way to the eastward of The Corner. Morse Light communication with an east-bound vessel was more than likely since the courses may have converged so far east - particularly if the vessel in question had a problem with her steering. However, if this did happen, the main concern of those on Titanic would have been the safety of the Rappahannock. Assured of that, they would assume as they did with other ice warnings, that any ice she had met with would be long gone by the time they reached the location.
I am inclined to go along with Julian's view that this is a sideline that ends in a cul de sac.
After reading thru the various threads and some other sites I agree. Like Dave Gittins came to the conclusion 20 years ago or so it was a yarn or by 1962 he was just remembering things wrong. Cheers.