Have received numerous calls from this number. I have tried to call it back from work but it was answered then immediately hung up, as if done by computer, numerous times.

Have had numerous issues with Telstra with the new "bundled" package, and have had nothing but problems, techs not turning up for appointments, different versions of the package dependant upon who you speak to, made complaints re the staff that are managing stores, so now I am getting these calls from the same number, and yes, when one rings they answer and then go to busy!

Telstra sends to our address - via  'Baycorp' their debt collectors - a bill for $523.41then they phone us from (02) 8570 3364 over the next few days.Also calls from (02) 8208 3200. (this no. traced back to Singapore and a firm whose operator claimed an affiliation with 'Baycorp')Is it usual for them to call after 9 pm on the weekend?This, above in mid January.Now 10/11 March - more calls from (03) 8623 7900.Are these idiots trying to catch the (for all we know) fictitious person named on this false bill by phoning us?Threats are included in information on the net about how Baycorp, etc., can fry a person's credit rating.Looks like that'll be their next move.Great people to do business with.After all, I've only seen the PMG/Telecom/Telstra being paid their bills all the years since our phone number was three digits.So Telstra seems to reward loyalty from long term customers with contempt and attempted fraud.

Pretty sure it's dunn and bradstreet.
been hassling me for money i apparently owe to telstra.
they act really shady.

Telstra sends to our address - via  'Baycorp' their debt collectors - a bill for $523.41
then they phone us from (02) 8570 3364 over the next few days.
Also calls from (02) 8208 3200. (this no. traced back to Singapore and a firm whose operator claimed an affiliation with 'Baycorp')
Is it usual for them to call after 9 pm on the weekend?
This, above in mid January.
Now 10/11 March - more calls from (03) 8623 7900.
Are these idiots trying to catch the (for all we know) fictitious person named on this false bill by phoning us?
Threats are included in information on the net about how Baycorp, etc., can fry a person's credit rating.
Looks like that'll be their next move.
Great people to do business with.
After all, I've only seen the PMG/Telecom/Telstra being paid their bills all the years since our phone number was three digits.
So Telstra seems to reward loyalty from long term customers with contempt and attempted fraud.

got it, answered it, "it" hung up. Called it back, disconnect. (not engaged, disconnected).