So long!
This is the longest length of green phone cord I could find very pleased
Moss Green rubber line cord that is round and flexible.
3 conductor. Comes in 3 different lengths and is spaded cord.
Moss Green rubber line cord that is round is hard to find because its no longer being made
This is your best bet.
Could be used as a 3 conductor subset cord also. These are new old stock found in packages.
This is the longest length of green phone cord I could find very pleased