rotaryfan2024

I've built two of these, with the two phone numbers I average about $5-7 a month on a Twilio pay-as-you-go plan. I had a long standing issue with incoming calls that I fixed in January, and usage has definitely increased from about $3 a month before that.

I built a DIY system like this using Asterisk, Raspberry Pi, and a Grandstream ATA: https://github.com/cancio/rotary

I based it on the instructions provided by this Show HN post: https://news.ycombinator.com/item?id=39801991

My experience in trying to reproduce one of these rotary VoIP write-ups that make the front page is that the authors tend to leave out some critical piece of their network/general setup that would allow others to reproduce. So in the end, good, interesting write ups but your mileage may vary in trying to reproduce.