The 32-year-old Argentine, who joined the club in 2004, will be a free agent in summer 2014.
"The president knows that we can sort my contract out in 30 seconds," Cambiasso told Inter's official website.
"As has always happened, they'll call me in and I'll sign whatever they want me to.
"I've spoken to [president] Massimo Moratti. My relationship with Inter can never go bad so we'll deal with this at the right time."
Cambiasso has made nearly 300 appearances for Inter during his nine years at the club.