Just a datapoint...I recall seeing that T-Mobile was really on the leading edge....quite some time ago. My phone (Consumer Cellular) had an AT&T sim for years (had reception problems at my house during peak traffic), so I switched to a T-Mobile sim (same phone) to address this....problem solved. Seems as if the number of calls I ignore has gone down too....mebbe a combination of both. I'm gonna throw my phone in a pond for 2020...if that schit starts up like before

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Mebbe the R party (in DC) reads PARF....decided there's no point in calling me eleventy-dozen times a week....Area code 202