1. block and block (I’ve more than 1000 numbers blocked number accumulated)
2. Answer, but don’t need to speak or talk, continue do your own stuff until they hang up.
3. Answer, put it next to anything, music, movie, song let them listen (usually last for 1 minutes, it’s like their KPI if called is answered, need to be at least 1 minutes)

Note: they can’t call you more than 3x per day if can’t reach out to you

But the called is answered (refer to 1&2), then they stop call for the day.