Missed call from this number today; 15-05-2012.
No voicemail of course...
GRRRRR...
But hooray for this site!!!

Calling and hanging up. Nuisance.

Receiving calls daily for over a week. Always hangs up before I can answer. Annoying.

Called my phone I answered heard nothing, 2 seconds later it hung up. random

Called back and followed the prompts to be taken off the list.

Wish I could block this number, so annoying, I think they call to see when you will answer or not to follow up with other calls from other numbers later on.

This number keeps calling me constantly and I always say im not interested and they say its important to change my plan on optus! ANNOYING~

just block the number through ur phone or optus

Got called and picked up immediately, but they hanged up after I said hello. Went through their menu on call back and removed myself. I doubt it will work but yes!

Just received a call.
Answered, 2 second pause.
Asked them if this was a telemarketing call.
They said yes.
I told them this number was on the Federal "do not call" register.
She apologised and said god bye.

I wish she just didn't call.

Removed myself from their call list. It's available in the options list if you call back

I think its optus..just signed up for a new fone weeks before..they are tryin to sell me a electricty plan with origin..look out peeps..this is the new way to get to you..

I have had several calls a day for weeks now and this is really frustrating. How can I make it stop?

Just call the number back and the voice prompts will give you an option to remove your number from the marketing system. Hopefully it works.

I just called the number back. It said the company was "OCIS" and gave gave me prompts to be taken off their calling service and to delete my number from their system. hopefully that worked!

Just received from this number - hung up as soon as I said hello. WTF?

Over the past weeks (July 2012), many calls - day & night. I have not answered thanks to messages online from others. How can we stop them? :(

I got a call from this number to tell me I'm ready fir a upgrade he'll to the yeah!!!

(03) 9937 7700.....I actually missed this call and check here before ringing it back. Im glad i did now. In future i will definately let these calls run to my v/mail!
Thanks everyone that has made a complaint on here, it was very helpful :)

its optus. stop calling me!!!!