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My mobile phone recorded this number as a missed call, I answered it but no one there,I tried to ring back and was told that it is not connected, how can this be?

Missed the call and tried to call back. Number not connected.The phone I have is under a Telstra Corporate account.

Missed call from this number but when I returned the call an Optus message states that the number has been disconnected.

saw a missed call from this number just now. Being an (08) number and being in WA you think it's a local call at first.How do they display an Australian number when they obviously aren't in Oz.

These people are quoting my business name as the origin of their calls and IT'S NOT US! Not sure how / who to take action against as I get several complaints per week but any information you can share would be helpful.

Telemarketing.  Person said it was AMS ,  Australian marketing services.

Same here. Got a call 5 mins ago and they had my name but couldn't pronounce it. Frustrating and annoying. Wouldn't tell me where they got my number,so they got old fashion leave me alone and I hung up. Put them in my mobile phone and blocked the number.it has worked :)