Here's an almost guaranteed way to stop AGL calling you. The trick is to google AGL (or whatever nuisance caller ID is bothering you) and look up their media relations person. You'll get a desk phone number, their personal phone number and an email address. Plus you'll pick up a couple of senior executives. If you feel generous, ask them to stop calling within 48 hours or you'll publish their contact details online. If you're annoyed, publish anyway.

Email them, ring their mobile number (keep it professional) but insist that if they enjoy privacy, they should offer you the same courtesy.

For example:

This guy is listed on a business centric press release:

Garry West
Media & Partnerships Business Partner – Energy Markets 
T: (03) 8633 8311 
M: 0499 005 912 
E: gwest @ agl.com.au

This guy pops up occasionally:

James Hall
General Manager Capital Markets 
T: (02) 9921 2789 
M: 0401 524 645 
E: jbhall @ agl.com.au

Rob Cooper
Communications Manager, AGL Macquarie 
M: 0427 640 003 
E: rob.cooper @ agl.com.au

Media managers are notoriously picky about having to change email addresses and mobile numbers when the customer service team ignore requests for calls to stop.

Kathryn Lamond
Senior Media Manager 
T: (02) 9921 2170 
M: 0424 465 464 
E: klamond @ agl.com.au

So just click through these press releases, consumer oriented is best and go to work.
Start with whocallsme.com or reverseaustralia.com

3 calls a day for 4 days in a row, when you answer no one talks,,, they should be shot....

It is rubbish cal. Few calls per day and no speak on call.

SPAM - Just pick up so the call connects and cost them the connection fee and then just hang right up

What? You are not angry as myself Angry? You Fool and Idiot, those Terrorists from (03) 9988 0838 are still calling me everyday, they never stop calling me. We are now 19 of March 2014 and they keep calling me 11 times a day. You have to be eaither working for those Terrorists or you aare a Sympathiser of annoying Telemarketers and you enjoy licking their Arses. Not angry as Angry, stupid Beer drinker. Angry is now ANGRY with you for your stupid comment. You will be Parade with the Telemarketers on the Public Square before going to Camp 14 to be Shot.

sick of these calls continually for years always from Melbourne 03 and various numbers, agree businesses need to be able to use DNC register, time wasters, on on a ladder, mobile rings,put everything down for a timewasting rubbish call

I just got this call and I answered "hello" a few times but no one responded and they hanged up. Very vexed about it since I have had calls like this before.

just put it in call display as tele marketer thx for ur guys info

At least twice every day for the last 2 weeks, and a very similar ph number also calling. Am angry but not as angry as Angry... but almost. Thanks to previous comments have not answered. Thanks again folks.

Just rang but I didn't answer it due to the attached comments ~ thx

Those Phone Terrorists never stop calling. I thought it was the Terrorists call AGL Electricity who calls me every 10 minutes but it was another Terrorist organization because when I call them they did not identify themeselves, it was an Automatic Machine with a woman voic Recording saying to leave my name and phone number then hung up 20 seconds later when I did not leave my name and phone number. If only Jhon Haward the former Prime Minister of Australia could not have removed the Machine Guns from the people of Australia I could go there to those Phone Terrorists who does not stop calling me and Rape them with my Machine Gun and shoot them dead. F**king Australian Politicians and Telephone Companies for allowing those Phone Terrorists to get away with Phone Water Boarding. F**k you Australian Government and Telstra and Optus and all those other Telephone Companies.

picked up call and all I heard was call centre in background. Listed now on my caller ID as do not answer.

Telemarketer on behalf of AGL!
We have made it a policy to NEVER sign up to any thing through door to door sales or calls via a telemarketer. We are sick to death of 20+ calls a day. How can a business provide good customer service if we get interrupted with crap like this!

So agree with Dianne please let business go on dnc register I am a hairdresser and have at least 6-10 spam calls a day!!!!!!!

'Saving Green' continue to call after being asked not to

We should be able to see the word "telemarketer" come up on our caller id, not just a number. I agree with Dianne, a lot of time wasted on these calls.

omg even after my husband told them not to ring back they have rang back!!!

First think on a Monday Morning, I agree should be able to add Businesses on DNC register we have less time to spare than residential and we will look for the best deal not just accept one that cold calls.

missed call, but thanks to Dianne I know not to pick up next time.

Yet again another number calling in regard to electricity account. As a small business, a lot of time is wasted every day on answering these and other telemarketing calls. We should be able to register on the DNC register.