I ran into this article that uses MySensors and the nrf-doctor to correct issues with Pcb antennas on nRF24 modules.
I didn't try it, but seems to deserve a mention at this forum!
@andriej
Hi, I had problem using the main branch mysensors/Raspberry, that because of the bit-field struct (header_s) in Sensor.h They will get packed in different order on the arduino compared to the RPi (at least with my compiler, gcc). In order to fix this I created the 1.4dev branch. It uses full bytes instead of the bit-fields, but you need (of cause) to compile both the sensors (arduino) and the gateway (RPi) using the 1.4dev branch.
We need to fix this in the main branch later on (and use the same files as in mysensors/Arduino/libraries/MySensors)
Are you still able to use the same analog phone plugged into the back of your modem? If so then it has to still use the same protocol, and I don't understand why the analog beacon wouldn't still work. It would just have to be on that same wire, not on the internet side of the modem. The modem is doing all of the translation in that case.
Or am I missing something? Did you have to get a new phone to use the new service?