check_expr
Open Source Private Branch Exchange (PBX)
RUN apt-get update && \
apt-get install -y asterisk
RUN apt-get update && \
apt-get install -y asterisk
RUN apk add asterisk
RUN apt-get update && \
apt-get install -y asterisk
RUN dnf install -y asterisk
RUN apt-get update && \
apt-get install -y asterisk