The T Sound in the London Accent

So who left the telephone on the floor? They're saying etc. So I'm really really sorry Kerry that's probably his date. She came upstairs getting ready and all that. And then I'll sit down on the setty waiting for you know. But he doesn't say setty, he's a setty, setty. It is quite a common feature in that sort of London accent that the T sound isn't really pronounced like a T sound. Instead he gets pronounced with a kind of glottal stop. That plosive sound comes from the back of your throat instead of water. He says Dan and the old sofa ripped down and fell off. Not the whole sofa