This number called many times (12-15). They pretended to be OPTUS and asked for personal information. They are probably part of an identity theft ring.

Not so much a comment about this number, but telemarketers in general.
If they are not from this country and you don't want them to call back, don't simply hang up or put your number on the do not call register, be EXTREMELY racist. It works for me.
Personally, I don't care where someone is from or what they believe, but I use racism ALL THE TIME to upset these mongrels.
Only problem is, I enjoy doing it, but they don't call back, so I gotta wait for a new call centre to open up to do a new round.

I have been getting calls from this no. but told them that it's the wrong name & number, so we will see if I get them again. it's now the 5th day in a row.

who are these people? ive had 5 missed calls from them and they leave a voicemail but with nothing said and when i ring back its an automated message

(02) 8198 3820 has called me everyday for the last three(3) days, picking up to nothing is highly annoying. My mobile account is with OPTUS which may explain it somewhat if it is ads for OPTUS as some suggest.  Oddly I've put the mobile and home phone on the 'do not call' list but alas it seems to be wearing out! Errghhh!

I've been getting the calls do...but don't you think that's too harsh to call them scum? Their just trying to make a living and times are tough! I've done telemarketing before and None of it was a scam...I wouldn't have done it if i thought it was...but of course there are plenty of shonky ones out there..but not all of them are...sometimes its hard to find any other job when you have to work around a schedule of uni or whatever....or would you rather people be unemployed?? Think about it

I have been having the same problem with this (02) 8198 3820 it calls me every day at least once if not twice. I have never answered as I didn't recognise the number and they have never left a message, then I found this thread and it all made sense.Have called Optus but all they have done is say it's nothing to do with them and that they will register my complaint, I have also registed with the Do Not Call Register in the hope that this will stop them and lodged a complaint with the Ombusman.I doubt this will do any good but maybe if everyone does it, it may just annoy bloody Optus enough that they do something about it and at least taking our complaints seriously!

please don't call me everyday!

i have ignored countless call's from them !

tried several times to send email tocaitkins @ ictaustralia.com.au but postmaster keeps sending it back undelivered any ideas