I've previously blocked this number but can see who has tried to call. Same again, today, no message left.

Suggestion: If you are receiving these calls via the NBN and a router, gain access to the router and check if it has the ability to block numbers, or even better, a range of numbers - may 10, 100 or 1000 at a time. If you do this for each call, you will severely reduce the numbers of these nuisance calls.
You may be able to only answer calls in your address book.

Caller: Charity group

Cold caller from a charity.

Caller: Softly spoken woman

I told her I have no money to spare.

The pests have been quiet for a few days... must have been busy watching the World Cup Women's Soccer ! But now they have started again... no message left. Even if a legit charity I never give money to strangers over the phone. Agree with other comments that if this is on-behalf of the Salvation Army they are damaging their brand. Blocked.

They'll call on your mobile!

Caller: Salvation army

They'll call you on your mobile

Caller: She mentioned the Salvation Army

Phone pest asking for money.

The usual: Called. Not answered. No message left.

Caller: Apple Marketing subcontractor

Charity phone pest.

Have called me 5 times this month (7 days). Assuming spam, as they never leave a message and even if you pick up, they hang up.

Rings all the time. No message.

I now have this number blocked. My phone doesn't even ring but I get an SMS to say I missed a call from this number. Bloody nuisance.

Caller: charity

Getting many charity calls in last few months...a noticeable increase. I regularly donate to an animal welfare charity and will not be donating to any others - these people that call need to realise they are doing a disservice, as they are on a blocked list to never be donated to. Stop calling, as its a waste of your time and charity money

Another gutter scum ringing to harass on my Friday evening.

I never answer a number that I don't know. For this reason I cut off my landline over a year ago as not one caller was genuine. Even my elderly relatives call me international from their mobiles.

Unsolicited call at dinner time. Did not answer.

Caller: Woman wih a gentle manner

Lady conducting a survey on my donating intentions. Told her I had no money and hung up.

right on dinner time the scammers call

Caller: Salvation army

Calling roughly one time per day for past couple weeks. Phone identifies it as spam. They leave a message with my name. Relentless.