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+Asterisk PBX 11.17.1 Docker image
+=================================
+
+The smallest Docker image with Asterisk PBX 11.17.1 (~17MB) https://hub.docker.com/r/andrius/alpine-asterisk/
+
+This image is based on Alpine Linux (2.7) image, which is only a 5MB image, and contains
+[Asterisk PBX 11.17.1](http://www.asterisk.org/get-started/features).
+
+*[Due of bug](https://bugs.alpinelinux.org/issues/3503), this image based on latest Alpine Linux version (2.7), where everything works: SIP stack, calls, AGI, AMI. Author uing this image for ongoing VoIP systems development with Adhearsion.*
+
+Total size of this image is only:
+
+[![](https://badge.imagelayers.io/andrius/alpine-asterisk:latest.svg)](https://imagelayers.io/?images=andrius/alpine-asterisk:latest 'Get your own badge on imagelayers.io')
+
+What's missing
+---------------
+
+Only base Asterisk packages installed. If you want to add sounds, it's recommended to mount them as volume or data container, however you may install additional packages with `apk` command:
+
+- asterisk-sounds-en
+- asterisk-sounds-moh
+- asterisk-alsa
+- asterisk-srtp
+- asterisk-curl
+- asterisk-tds
+- asterisk-mobile
+- asterisk-dahdi
+- asterisk-fax
+- asterisk-speex
+- asterisk-pgsql
+- asterisk-odbc
+
+Database support
+----------------
+
+By default, Asterisk PBX strre CDR's to the CSV file, but also support databases. Refer Asterisk PBX documentation for ODBC support. 
+
+For Postgre SQL include following lines to your Dockerfile:
+
+```bash
+RUN apk add --update less psqlodbc asterisk-odbc asterisk-pgsql \
+&&  rm -rf /var/cache/apk/*
+```
+
+And For MySQL:
+
+```bash
+RUN apk add --update psqlodbc asterisk-odbc \
+&&  apk add mysql-connector-odbc --update-cache --repository http://dl-4.alpinelinux.org/alpine/edge/testing/ --allow-untrusted \
+&&  rm -rf /var/cache/apk/*
+```
+