Steve Harmison has revealed he will "gladly" continue his England career for as long as he is wanted.
However, the Durham paceman also insists he will not hesitate to step aside if the selectors decide his time as an international bowler is over.
Harmison told Talksport: "I've got an idea in my mind what I want to do. Anybody who plays for their country never wants to give it up but there is going to come a time when you have to say 'well it's time for me to move aside because there are other people who can do as good a job - if not a better job - as me'."
He added: "I always believe you plan for the Ashes and for the next Ashes and I'll sit down with Andrew Strauss and Andrew Flower and if they want me to go to South Africa, I'll go.
"If they are saying 'we're going to take this in another direction', then I'll gladly step aside.
"I don't know in my own mind yet what I am going to do."
Harmison continued: "All I am going to do is enjoy this moment because at the end of the day, I wasn't in the side at the start of the summer and that decision probably wasn't going to be made.
"It didn't need to be made because it looked like they were going to go elsewhere, but now I've forced my way back in like last year, who knows.
"I've got to wait until probably just before the squads are announced for South Africa to sit down with the coach and captain and see where they are going to take the side.
"If they want to take the side with me in it, obviously I'll not turn them down, I'll have a good hard think about where I want to go and from there make a decision to take me forward."