Do any of find this?

During calls whenever the person I'm on the phone to speaks or makes a sound I get this very audible hiss sound in the background. When the person stops speaking all goes dead silent.

Having looked on the net I can't work out if it's par for the course or unusual and worthy of replacing the phone.

I'm on Orange and have 3 or 4 bars reception during the calls. Calling mobiles, land lines or voicemail makes no difference to the sounds.

return the phone and get a new one.

Simples

Do you have a snake friend?

I'll get my coat...

Goto the shop, speaker is probably broken

Bought it through mobiles.co.uk

Popped into CarPhoneWarehouse at lunch wasn't able to come up with anything conclusive as they were busy and the store was rather noisy.

Have filed a faulty report and may pop into another store this afternoon if I get the chance.

See if the problem persists while using a headset, just to be sure that the speaker is the problem.

That might be the lack of comfort noise.

http://en.wikipedia.org/wiki/Comfort_noise

I've just tried headphones and still get hissing. Sounds like interference coming through from somewhere.

Calling myself and leaving a voicemail I get the usual hissing but it also continues during silences while playing a message. Listening to hiss by itself sounds like a landline with a bad connection.

There is no hissing when playing iplayer or music.

I'll be heading home for a day tomorrow and will try the phone out on some friends.

Never heard of comfort noise before. Don't think this is the problem as it just sounds like a normal phone when the other party is quiet, then injects hiss when people talk.