Ling continues to be linked with the managerial vacancy at one of his former clubs, Swindon Town, but says he has heard nothing from the Robins to date.
He told the Epping Forest Guardian: "For now I'm still contracted here for the next seven months and while I don't want it to seem like I'm putting a gun to anyone's head, I'd be more than happy to talk about a new contract.
"With such a short time left on my current deal, I've got to look out for my own interests, as I think I'm working on the shortest contract I've been on since I became manager here.
"But at the moment the chairman is away, although I'm sure we will have some talks when he gets back."