I put this up on another board as well, but it's worth knowing.
Here's the thing - if you block (08) 6210 2355 on your phone, they will attempt to get around this by calling from (08) 6210 2355, so if you're going to block the number, make sure you get all of it, as they seem to try and find new and inventive ways to get through.

We have been receiving phone calls 3 - 4 times a day from this phone number for the last 3 weeks very annoying. Been in contact with Telstra to be advised that this company is known to Telstra. You can either contact 1800 805 996 Telstra unwelcome telephone calls or email them from the website. I have also raised a formal complaint with Telstra about this business. If Telstra is really using them for telemarketing they will end up loosing business not keeping it!!!

I have been receiving hang up calls from these idiots over several months. I use a company phone so I answer all calls, I also return calls. I have now saved these fakers in my contacts as "Do not answer" so I will ignore all future calls from them.
I noticed that they stop calling for a while when you don't return their missed call, then after a while they will call at a different time of the day.

Stop calling during lunch rush and hang up!!!! We are trying to run a business!!!!!!!!

Autodialler rang our office for 20 minutes approx 8 times- no one on line at other end- when I finally managed to get a voice at the other end I was met with an aggressive pitch from a person purporting to be a Telstra dealer- Gave ID on my request of as D24694. Will make further coomplaint to Telstra now I have seen this website

three calls three days running, each time they hung up after 3 seconds

annoying telco (pretending to be telstra)

Just happened to me - same thing they hung up when i answered! Glad to find this so i won't bother answering in the future...how annoying

Certainly a scam. They're not an official Telstra partner. An automated system dials numbers then hangs up straight away. There hope is that people will call back when they see the missed call.

Don't bother calling them back. If your phone has the ability to block numbers, then take advantage of it. Otherwise get in contact with your phone service provider and request the number be blocked.

I have been receiving several calls a day from this number for a few days now and I have never bothered to answer, good thing too because as I can see they are just a bunch of telemarketers that try to scam. Will definitely not be answering in the future...

Like all the rest here, totally pissed off with these people continually ring up!

I get a phone call every day from these jerks, when i answer the phone they hang up. when i call back the number on my caller id. i get a message saying you have reached the TT Telco group we called to talk to you about Telstra products and will call back at a later date.i might call Telstra and see if they can shed any light on this. I dont like my chances!

I was so sick of these calls, I rang Telsta and they said TTA Telco Group is one of the off branch companies they hire to offer their clients special offers....So I told them to block that number cause I'm sick off getting calls that just hang up from this company and I have no interest of any deals this company has.

These guys suck, they just keep calling, rarely is there actually anyone on the line! Just save them as do not answer, totally over them.

Same thing, they call then hang up. Just a nuisance.

answer the call but dont speak let them waste money

only got one call thus far, won't be answering then

I have lost count of how many times I have had missed calls from this number. It is especially annoying because they often call when I am asleep.

we have business phone line and it is so annoying, this number calls us 4-5 times a day and hangs up!!!!!!! it should be banned

Thank you for this service. I have now blocked the number with telstra and registered for Do Not Call service.