Let's say Tom is the anchor for a news program. His colleague Jane is his backup for that program during his absence. I heard on a radio something like:
This is Jane 'info' Tom.
I could not catch the exact word from that radio. It just sounds like the word 'info'.
Questions: What the word is most likely used in this setting? If this could not be figured out by the information I provided here, what would be the proper word(s) which is likely to be used for this scenario?