The Blues' captain retired from international football in September, claiming that the Football Association had made his participation "untenable", but, while the two have not specifically discussed the Three Lions, the centre-back feels his colleague's support.
"He is always encouraging me," Cahill, who started alongside Phil Jagielka in Friday's 5-0 win over San Marino, told London24.
|7/1||England are 7/1 with Bet365 not to qualify for World Cup 2014
"I was disappointed I didn't score," the defender added after the match, having miskicked an attempted volley in the box in the second half, "especially as I had an earlier chance that was blocked early doors. But it is a pity I didn't score that time as I had the time to take it down.
"I have managed to get three in six games this season but more important is to keep a clean sheet.
"That's what we did, although it was poor football."
Cahill admitted that the routine victory over the world's joint-lowest-ranked national side had taught England little.
"It was hard but you don't take too much from a game like that; you are not asked too many questions in that sort of game," he observed. "It's nice when that happens but that's how it goes sometimes.
|"It was hard but you don't take too much from a game like that; you are not asked too many questions"
- Gary Cahill
"I was pleased with the performance. It was my job simply to get hold of the ball and give it to players who would create chances, which is what we did.
"It was comfortable to be either a goalkeeper or a defender, to be honest.
"We had the majority of the ball, which is what we expected, but we had a professional job to do and we did that, I think.
"We watched clips of them before the game, so we knew we had to concentrate for the 90 minutes and do it right."