[rotaryfan2024]

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

[kleinishere]

Thanks for linking this. What is the monthly spend? And how long ago did you do it? Has it grown/stayed the same/or decreased in its use?!

[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.