The first call from this number claimed to be a lady from Optus. I mentioned it was not a convenient time and hung up. Since then, I have had about 20 calls over the last week and a half. No voice message is ever left and if I answer it there is just silence.

they are calling me 8 times a day (02) 8216 4900. i want to call the police.. its freaking me out. when you answer then its 28 secs of eerie silence..

it optus..... well that who they say they are

whoever this lot are, they are downright gutless and need to be dealt with...obviously noton the up and up

Can't call back either. Don't waiste your credit calling back. They will call again if they want you.

Same as everyone else. It says the phone is switched off, meaning it must divert to a mobile phone.

ive missed the call from them 6 or 7 times now... and i cant reply it, and i answered it once and it just hung up after 5 secs of silence

they call me but i cant call bak its getting annoying now that they've called on numerous accounts

received call from this number, cnt call back really pissed off

called and missed the call. cannot return phone call. annoying!

They called me twice within the last two days but I always missed the call. The last time a woman with an eastern accent left a voice message. But I think it wasn't her intention to do that she just thought someone picked up. :D
I tried to call back but I didn't even get a connection...

Good to know that I can ignore those calls from now on (:

i got it like 2 hours ago. anyone got a clue who this is?

My husband and I have also received them and there's no answer on the other end.  We found out though that there's a new rule where telemarketers can now call you on your mobile and you'll get charged for it, so we don't answer calls from numbers we don't know anymore.

I have been receiving for one week calls from this number.(02) 8216 4900. I am very carfull Inever give permission to give my details how is possible telemarketing have this details!!?????

I get a call from them about once every couple of days. Every time they've called I've either missed it, or answered and there was no-one there straight away. That is apparently a dead give away that its telemarketers or scammers. They have a multiple number dialer and can dial up to a hundred numbers at once, and whomever picks up first, that button will light up on their machine, then they press the button to talk to you, hence the delay.

a**holes been calling me too. Got a call today so I answered it but just silence on the other end, no one replying, so I hung up. Thanks for the idea to save the number as "prank - dont answer"