The veteran goalkeeper was speaking with Ian Wright of Absolute Radio after the Toon's win at QPR.
"I'm leaving Newcastle after 20 years. I'll be listening to offers but we shall see. I'll been holiday and my phone will be on.
"This place is a rollercoaster. There's highs and lows - time to step off the rollercoaster.
Listen to the full interview at absoluteradio.co.uk.