The 40-year-old, who will become a free agent this summer, has revealed his commitment to Palace, who are trying to keep him by launching talks over a new deal.
"My agent has been speaking to Palace and the chairman," Phillips told the Croydon Advertiser. "There have been a few figures banded around but we're a bit apart on them.
"I do have offers elsewhere, and if I'm being honest, there is one real offer which I'm very, very tempted by. There are a couple of other offers that may materialise over the next week or so too.
"But there is certainly an offer there for me that is very tempting, though. It's at a good level that certainly interests me."
Phillips scored the winning goal against Watford in the Championship final playoff to secure Palace a place in the Premier League.