I am looking for an asterisk specialist for realizing this special project.
A (SIP-)telephone should be placed in a small museum. Visitors can call up and listen to various audio announcements by entering a telephone number (two-digit? three-digit? tbd).
My idea is to use a raspberry Pi 3 B+ and RasPBX on it. The installation is not connected to the real telephone network. There is also no internet connection, the whole installation should be standalone.
I need a partner where speaking german or english.