Network Boundary Definition - The Australian Government to Require SMS/MMS Sender ID Registraion

The technical challenge of accurately defining telco network boundaries for filtering purposes, with traditional bias toward delivering traffic rather than blocking it.

Defining the boundaries of sprawling telco networks remains a significant technical hurdle, complicated by a traditional industry bias toward ensuring traffic delivery over implementing strict filtering. This preference exists because it is often easier for providers to issue refunds for unwanted traffic than to manage urgent support requests from major clients whose complex multi-vendor failover plans might be disrupted by aggressive blocking. To navigate these challenges, some suggest shifting control to the consumer by displaying both the spoofed number and the call's true origin, thereby empowering users to make more informed decisions about which sources to block.

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Telco networks are sprawling and accurately defining the boundary might be harder than it sounds.

Traditionally they have a bias towards "working"/delivering traffic. It's easier to issue a refund than answer a urgent support request.

I can also imagine the biggest customers have all sorts of multi-vendor failover plans that may be affected.

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I am sure there are reasons why this won't work, but could it really be so hard to show both the faked number, and where the call actually comes from, so I could choose which one to add to my block list.