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Surely telcos can do something to block calls coming from sources that don't own the number they are providing as caller id. Internet provides started doing thi
by russdill 9y ago
Surely telcos can do something to block calls coming from sources that don't own the number they are providing as caller id. Internet provides started doing this years ago with alien packets.
- MichaelGG 9y agoThey often can't. A call can come in from any number of sources. Not to mention call forwarding and all that stuff. Telcos would love to kill robo dialing, but they usually do it by requiring a certain percentage of calls to complete and last longer than 6 seconds. If you want to hurt them, answer and hangup immediately.
- russdill 9y agoAh, that's why they don't say anything for 6 seconds.
- ahmeni 9y agoWith number portability there is no solid "owner" of phone number blocks any more.
- toast0 9y agoThere are a lot of legitimate reasons why a call from a number isn't coming from where you would be directing the call, so it's hard to fix it with a simple policy. What would be useful though is requiring something analogous to email received headers, combined with a real time method to report calls as spam/unwanted. If spam volume from an interconnecting carrier is too high, cut them off. Telco routing is a lot of twisty passages, but there are many fewer players than internet routing, so it should be easier to get bad apples off the network, as long as there is desire and some users are willing to provide feedback on calls.
- posguy 9y agoCarriers already do this FYI, but it only gets you so far. Robocallers pay higher rates due to this, but they seem glad to pay.