[Feature request] HLR lookup
I'm using Yet Another Call Blocker and it's effective but, at least in Italy, telemarketers are using a really cheat strategy: they call with always different caller id, from nonexistent mobile numbers.
I think the only effective approach to stop these type of calls is HLR lookup. This feature would be simple to add, using third party APIs, eg.:
https://captainverify.com/it/api-hlr.html
Would it be possible to make this feature configurable, so the users may be able to choose the HLR API provider by themselves? I notice the these APIs are very similar between various providers...
These are paid services, but with affordable prices. The query could be optimized querying only mobile numbers and only numbers not present in address book (and/or whitelist?)