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izPBX is a Turnkey Cloud Native Telephony System powered by Asterisk Engine and FreePBX Management GUI

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Name

izPBX Cloud Native VoIP Telephony System

Description

izPBX is a Turnkey Cloud Native VoIP Telephony System powered by Asterisk Engine and FreePBX Management GUI

Supported tags

Production Branch:

  • 18.16, 18.16.X, 18.16.X-BUILD, 18.16.X-COMMIT,18, latest (Asterisk 18 + FreePBX 16)
  • 18.15, 18.15.X, 18.15.X-BUILD, 18.15.X-COMMIT (Asterisk 18 + FreePBX 15)

Development Branches:

  • Asterisk 18 LTS: dev-18, dev-18.X, dev-18.X.X-BUILD, dev-18.X.X-COMMIT

Version notes:

Tags format: Z.Y.X-[BUILD|COMMIT]

where:

  • Z = Asterisk release (PBX engine)
  • Y = FreePBX release (PBX GUI)
  • X = izPBX release (this project)
  • BUILD = Build number | COMMIT = GIT commit ID

Look into project Tags page to discover the latest versions

Dockerfile

Features

  • Fast initial bootstrap to deploy a full features PBX system (60 secs install time from zero to a running turnkey PBX system)
  • Built-in PBX Engine based on Asterisk® project (compiled from scratch)
  • Built-in WEB Management GUI based on FreePBX® project (with default predownloaded modules for quicker initial deploy)
  • No vendor lock-in, you can migrare to izPBX and away izPBX simply importing/exporting FreePBX Backups
  • Based on Rocky Linux 8 64bit OS (RHEL derivate with long term support)
  • Small container image footprint (~450 MB)
  • Multi-Tenant PBX System Support (look into Advanced Production Configuration Examples section)
  • Automatic Remote XML PhoneBook support for compatible VoIP Phones
  • Persistent storage mode for configuration and not volatile data
  • Fail2ban as security monitor to block SIP and HTTP brute force attacks
  • FOP2 Operator Panel
  • Integrated Asterisk Zabbix agent for services health monitoring
  • Misc izpbx-* tools scripts (like izpbx-callstats)
  • izsynth utility - TTS/Text To Speech synthesizer, background music overlay assembler and audio file converter for PBX and Home Automation Systems
  • tcpdump and sngrep utility to debug VoIP calls
  • supervisord as services management with monitoring and automatic restart when services fail
  • postfix MTA daemon for sending mails (notifications, voicemails and FAXes)
  • Integrated cron daemon for running scheduled tasks
  • Integrated TFTP and DHCP server powered by DNSMasq for autoprovisioning VoIP Phones
  • Integrated NTP Server
  • Apache 2.4 and PHP 7.2 (mpm_prefork+mod_php configuration mode)
  • Automatic Let's Encrypt HTTPS certificate management for exposed PBXs to Internet
  • Custom commercial SSL Certificates support
  • Logrotating of service logs
  • All configurations made via single central .env file
  • Many customizable variables to use (look inside default.env file)
  • Only two containers setup: (Antipattern container design but needed by the FreePBX ecosystem to works)
    • izpbx (izpbx-asterisk container: Asterisk Engine + FreePBX Frontend + others services)
    • izpbx-db (mariadb container: Database Backend)

Screenshots

izPBX Dashboard (FreePBX):

izpbx-dashboard

izPBX Operator Panel (FOP2):

izpbx-izpbx-operator-panel

izPBX Monitoring Dashboard (Zabbix):

izpbx-zabbix-dashboard

izPBX CLI (Asterisk):

izpbx-console

Targets of this project

On-Premise, fast, automatic and repeatable deploy of PBX systems.
by default network_mode: host is used, so the PBX network is esposed directly in the host interface (no internal container network is used), so the default UDP RTP port range can be from 10000 to 20000.
If you plan to disable network_mode: host, tune the port range (forwarding 10000 ports with the docker stack make high cpu usage and longer startup times), for example for 50 concurrent calls:
APP_PORT_RTP_START=10000
APP_PORT_RTP_END=10200
for best security, fine-tune the ports range based on your needs by not using standard port ranges!

Limits of this project

  • Deploy 1 izPBX instance for every host. No multi deploy works out of the box by default when using network_mode: host (look Advanced Production Configuration Examples section for Multi-Tenant Solutions)
  • Container Antipattern Design (FreePBX was not designed to run as containerized app, and its ecosystem requires numerous modules to function, and the FreePBX modules updates will managed by FreePBX Admin Modules Pages itself not by izPBX container updates)

Deploy izPBX

Using docker-compose is the suggested method:

  • Install your prefered Linux OS into VM or Baremetal Server

  • Install Docker Runtime and docker-compose utility for your Operating System from https://www.docker.com/get-started

    • RHEL8 based distro Quick&Dirty commands (skip if you use other distribution):
sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
sudo dnf install docker-ce -y
eval sudo curl -L "$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep browser_download_url | grep "docker-compose-$(uname -s)-$(uname -m)\"" | awk '{print $2}')" -o /usr/local/bin/docker-compose && sudo chmod +x /usr/local/bin/docker-compose
sudo systemctl enable --now docker

  • Create a docker-compose.yml, or clone git repository, or download latest tarbal release from: https://github.com/ugoviti/izpbx/releases and unpack it into a directory (ex. /opt/izpbx), faster method with git:

    • git clone https://github.com/ugoviti/izpbx.git /opt/izpbx
    • cd /opt/izpbx

  • Checkout into latest official release:

    • git checkout refs/tags/$(git tag | sort --version-sort | tail -1)

  • Copy default configuration file default.env into .env:

    • cp default.env .env

  • Customize .env variables, specially the security section of default passwords:

    • vim .env

  • Deploy and start izpbx using docker-compose command:

    • docker-compose up -d

  • Wait the pull to finish (~60 seconds with fast internet connections) and point your web browser to the IP address of your docker host and follow initial setup guide

Note: by default, to correctly handle SIP NAT and SIP-RTP UDP traffic, the izpbx container will use the network_mode: host, so the izpbx container will be exposed directly to the outside network without using docker internal network range (network_mode: host will prevent multiple izpbx containers from running inside the same host).
Modify docker-compose.yml and comment #network_mode: host if you want run multiple izpbx containers in the same host (not production tested. There will be problems with RTP traffic). Another available option is to disable network_mode: host and use macvlan network mode used for running izPBX into multi-tenant mode.

Alternative deploy method via 'docker run' command (not suggested)

If you want test izPBX without using docker-compose, you can use the following docker commands:

  1. Start MySQL:
    docker run --rm -ti -v ./data/db:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=CHANGEM3 -e MYSQL_PASSWORD=CHANGEM3 --name izpbx-db mariadb:10.4

  2. Start izPBX:
    docker run --rm -ti --network=host --privileged --cap-add=NET_ADMIN -v ./data/izpbx:/data -e MYSQL_ROOT_PASSWORD=CHANGEM3 -e MYSQL_PASSWORD=CHANGEM3 -e MYSQL_SERVER=127.0.0.1 -e MYSQL_DATABASE=asterisk -e MYSQL_USER=asterisk -e APP_DATA=/data --name izpbx izpbx-asterisk:latest

Upgrade izPBX

  1. Upgrade the version of izpbx by downloading a new tgz release, or changing image tag into docker-compose.yml file (from git releases page, verify if upstream docker compose was updated), or if you cloned directly from GIT, use the following commands as quick method:
cd /opt/izpbx
git pull
git checkout refs/tags/$(git tag | sort --version-sort | tail -1)
  1. Upgrade the izpbx deploy with:
    (NB. First verify if docker-compose.yml and default.env was updated a make the same changes in your .env file)
docker-compose pull
docker-compose up -d

  1. If the mariadb database version was changed, rememeber to update tables schema with command
    source .env ; docker exec -it izpbx-db mysql_upgrade -u root -p$MYSQL_ROOT_PASSWORD

  2. Open FreePBX Web URL and verify if exist any modules updates from FreePBX Menù: Admin --> Modules Admin --> Check Online --> Upgade all --> Process

That's all

Upgrade path to a major FreePBX release

FreePBX will be installed into persistent data dir on initial deploy only (when no installations already exist).

Successive container updates on the same release (example from 18.15.1 to 18.15.2) will not upgrade the FreePBX Framework (only Asterisk engine will be updated).

If you want upgrade FreePBX Framework/Core to a major release (example from 15 to 16), you have 2 options:

  1. Automatic upgrade using izPBX container release (example, switching from 18.15.x to 18.16.x release)
  2. Manual upgrade using FreePBX Upgrader tool

method 1: Automatic upgrade using izPBX container release (suggested)

  • Make sure before switching izPBX to a new major release, all FreePBX modules are updated to the latest release
  • Make sure you made a full backup of data dir (IMPORTANT!)
  • Make sure you enabled FREEPBX_AUTOUPGRADE_CORE=true in the .env file
  • Deploy the latest version of izPBX (ex. 18.15.x for FreePBX 15, 18.16.x for FreePBX 16, etc...)
  • izPBX should be detect an old FreePBX version installed and start the upgrade process
  • From the FreePBX / Modules Admin page, check if all modules are been updated and enable again disabled modules

method 2: Manual upgrade using FreePBX Upgrader tool

  • Make sure before switching izPBX to a new major release, all FreePBX modules are updated to the latest release
  • Make sure you made a full backup of data dir (IMPORTANT!)
  • Make sure you disabled FREEPBX_AUTOUPGRADE_CORE=false in the .env file
  • Deploy the latest version of izPBX (ex. 18.15.x for FreePBX 15, 18.16.x for FreePBX 16, etc...)
  • izPBX should start with the old FreePBX release but with all dependences installed and ready to complete the upgrade
  • Open FreePBX Menù: Admin --> Modules Admin --> Check Online select FreePBX Upgrader --> Process
  • Follow these istructions: https://wiki.freepbx.org/display/FOP/Non+Distro+-+Upgrade+to+FreePBX+16
  • From the FreePBX / Modules Admin page, check if all modules are been updated and enable again disabled modules

Advanced Production Configuration Examples

Multi-Tenant VoIP PBX with dedicated Databases

Objective

  • Run many izPBX instances into single docker host (you must allocate an external static IP for every izPBX backend/frontend)
  • Dedicated Database for every izPBX instances

Configuration

Create a directory where you want deploy izpbx data and create docker-compose.yml and .env files:

Example:

mkdir yourgreatpbx
cd yourgreatpbx
vim docker-compose.yml
vim .env

NOTE:

  • Modify docker-compose.yml according to your environment needs:
    • parent: (must be specified your ethernet card)
    • subnet: (must match you intranet network range)
    • ipv4_address: (every izPBX frontend will must to have a different external IP)
  • Modify .env according to your environment needs:
    • MYSQL_SERVER=db (you can't use localhost here)
version: '3'

networks:
  izpbx-0-ext:
    driver: macvlan
    driver_opts:
      parent: eth0
    ipam:
      config:
      - subnet: 10.1.1.0/24
        #ip_range: "10.1.1.221/30"
        #gateway: 10.1.1.1
  izpbx-1:
    driver: bridge

services:
  db:
    image: mariadb:10.5.9
    ## WARNING: if you upgrade image tag enter the container and run mysql_upgrade:
    ## source .env ; docker exec -it izpbx-db mysql_upgrade -u root -p$MYSQL_ROOT_PASSWORD
    command: --sql-mode=ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
    restart: unless-stopped
    env_file:
    - .env
    environment:
    - MYSQL_ROOT_PASSWORD
    - MYSQL_DATABASE
    - MYSQL_USER
    - MYSQL_PASSWORD
    ## database configurations 
    volumes:
    - ./data/db:/var/lib/mysql
    networks:
      izpbx-1:

  izpbx:
    #hostname: ${APP_FQDN}
    image: izdock/izpbx-asterisk:18.15.11
    restart: unless-stopped
    depends_on:
    - db
    env_file:
    - .env
    volumes:
    - ./data/izpbx:/data
    cap_add:
    - SYS_ADMIN
    - NET_ADMIN
    privileged: true
    networks:
      izpbx-0-ext:
        ipv4_address: 10.1.1.221
      izpbx-1:

Repeat the procedure for every izPBX you want deploy. Remember to create a dedicated directory for every izpbx deploy.

Deploy

Enter in every directory containig configuration files and run:

  • docker-compose up -d

Multi-Tenant VoIP PBX with shared global Database and single docker-compose.yml file

Objective

  • Run many izPBX instances into single docker host (you must allocate an external static IP for every izPBX backend/frontend)
  • Single Global Shared Database used by all izPBX instances

Configuration

Create a directory where you want deploy all izpbx data and create docker-compose.yml and a PBXNAME.env file for every izpbx deploy:

Example:

mkdir izpbx
cd izpbx
vim docker-compose.yml
vim izpbx1.env
vim izpbx2.env
vim izpbx3.env

etc...

NOTE:

  • Modify docker-compose.yml according to your environment needs, changing:
    • parent: (must be specified your ethernet card)
    • subnet: (must match you intranet network range)
    • ipv4_address: (every izPBX frontend will must to have a different external IP)
  • Rembember to modify every PBXNAME.env file and set different variables for MYSQL (for best security use a different password for every deploy), example:
    • MYSQL_SERVER=db (all deployes will use the same db name)
    • MYSQL_DATABASE=izpbx1_asterisk
    • MYSQL_DATABASE_CDR=izpbx1_asteriskcdrdb
    • MYSQL_USER=izpbx1_asterisk
    • MYSQL_PASSWORD=izpbx1_AsteriskPasswordV3ryS3cur3
    • so on...
version: '3'

networks:
  izpbx-0-ext:
    driver: macvlan
    driver_opts:
      parent: enp0s13f0u3u1u3
    ipam:
      config:
      - subnet: 10.1.1.0/24
  izpbx-1:
    driver: bridge

services:
  db:
    image: mariadb:10.5.9
    ## WARNING: if you upgrade image tag enter the container and run mysql_upgrade:
    ## source .env ; docker exec -it izpbx-db mysql_upgrade -u root -p$MYSQL_ROOT_PASSWORD
    command: --sql-mode=ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
    restart: unless-stopped
    env_file:
    - db.env
    environment:
    - MYSQL_ROOT_PASSWORD
    - MYSQL_DATABASE
    - MYSQL_USER
    - MYSQL_PASSWORD
    ## database configurations 
    volumes:
    - ./data/db:/var/lib/mysql
    networks:
      izpbx-1:

  izpbx1:
    #hostname: ${APP_FQDN}
    image: izdock/izpbx-asterisk:18.15.11
    restart: unless-stopped
    depends_on:
    - db
    env_file:
    - izpbx1.env
    volumes:
    - ./data/izpbx1:/data
    cap_add:
    - NET_ADMIN
    privileged: true
    networks:
      izpbx-0-ext:
        ipv4_address: 10.1.1.221
      izpbx-1:

  izpbx2:
    #hostname: ${APP_FQDN}
    image: izdock/izpbx-asterisk:18.15.11
    restart: unless-stopped
    depends_on:
    - db
    env_file:
    - izpbx2.env
    volumes:
    - ./data/izpbx2:/data
    cap_add:
    - NET_ADMIN
    privileged: true
    networks:
      izpbx-0-ext:
        ipv4_address: 10.1.1.222
      izpbx-1:

  izpbx3:
    #hostname: ${APP_FQDN}
    image: izdock/izpbx-asterisk:18.15.11
    restart: unless-stopped
    depends_on:
    - db
    env_file:
    - izpbx3.env
    volumes:
    - ./data/izpbx3:/data
    cap_add:
    - NET_ADMIN
    privileged: true
    networks:
      izpbx-0-ext:
        ipv4_address: 10.1.1.223
      izpbx-1:

Deploy

Enter the directory containig configuration files and run:

  • docker-compose up -d

Services Management

Command to restart whole izPBX deploy

docker-compose restart izpbx

Command to restart izPBX cntainer only

docker restart izpbx

Command to restart DB container only

docker restart izpbx-db

If you want restart single services inside izpbx container

Enter the container:
docker exec -it izpbx bash

Restart izpbx service (Asterisk Engine):
supervisorctl restart izpbx

To restart others available services use supervisorctl restart SERVICE

Available services:

  • asterisk
  • cron
  • fail2ban
  • fop2
  • httpd
  • izpbx
  • tftpd
  • postfix
  • zabbix-agent

Tested systems and host compatibility

Tested Docker Runtime:

  • moby-engine 19.03
  • docker-ce 19.03
  • docker-compose 1.25

Tested Host Operating Systems:

  • RHEL 6/7/8 based distro
  • Fedora Core >30
  • Debian 10
  • Ubuntu 20.04

Environment default variables

Consult the default.env file:

Zabbix Agent Configuration

Consult official repository page for installation and configuration of Asterisk Zabbix Template in you Zabbix Server:

FreePBX Configuration Best Practices

  • Settings-->Advanced Settings

    • CW Enabled by Default: NO
    • Country Indication Tones: Italy
    • Ringtime Default: 60 seconds
    • Speaking Clock Time Format: 24H
    • PHP Timezone: Europe/Rome

  • Settings-->Asterisk Logfile Settings

    • Security Settings-->Allow Anonymous Inbound SIP Calls: No
    • Security Settings-->Allow SIP Guests: No

  • Settings-->Asterisk SIP Settings

    • File Name: security
    • Security: ON (all others OFF)

  • Settings-->Filestore-->Local

    • Path Name: Local Storage
    • Path: ASTSPOOLDIR/backup

  • Admin-->Backup & Restore

    • Basic Information-->Backup Name: Daily Backup
    • Notifications-->Email Type: Failure
    • Storage-->Storage Location: Local Storage
    • Schedule and Maintinence-->Enabled: Yes
    • Schedule and Maintinence-->Scheduling: Every: Day Minute: 00 Hour: 00
    • Maintinence-->Delete After Runs: 0
    • Maintinence-->Delete After Days: 14

  • Admin-->Contact Manager

    • External
      • Add New Group
        • Name: PhoneBook
        • Type: External

  • Admin-->Caller ID Lookup Sources

    • Source Description: ContactManager
    • Source type: Contact Manager
    • Cache Results: No
    • Contact Manager Group(s): All selected

  • Admin-->Sound Languages-->Setttings

    • Global Language: Italian

Configuring VoIP XML PhoneBook Lookup

NOTE: Tested on Yealink Phones

  • Configure Contact Manager as reported above (the Contact Manager GroupName be MUST named PhoneBook otherwise doesn't works by default)

Option 1: PhoneBook Menu

  • Open VoIP Phone GUI (Yealink Phone GUI):
    • Directory-->Remote Phone Book
      • Index 1 (URL for XML Menu)
        • RemoteURL: http://PBX_ADDRESS/pb
        • Display Name: PhoneBook

Option 2: Define every PhoneBook you want to use

  • Open VoIP Phone GUI (Yealink Phone GUI):
    • Directory-->Remote Phone Book
      • Index 1 (URL for Extensions PhoneBook)
        • RemoteURL: http://PBX_ADDRESS/pb/yealink/ext
        • Display Name: Extensions
      • Index 2 (URL for Shared PhoneBook)
        • RemoteURL: http://PBX_ADDRESS/pb/yealink/cm
        • Display Name: Shared Phone Book

FAQ / Trobleshooting

  • FreePBX is slow to reload (https://issues.freepbx.org/browse/FREEPBX-20559)

    • As temporary WORKAROUND enter into izpbx container shell and run:
      docker exec -it izpbx bash
      fwconsole setting SIGNATURECHECK 0

  • Factory Reset izPBX (WARNING! your persistent storage will be wiped!):

    • docker-compose down
    • rm -rf data
    • docker-compose up -d

TODO / Future Development by priority

  • Kubernetes deploy via Helm Chart (major problems for RTP UDP ports range... needs further investigation, no valid solutions right now)
  • Hylafax+ Server + IAXModem (used for sending FAXes. Receiving FAXes via mail is already possibile using FreePBX FAX Module)
  • macOS host support? (edit docker-compose.yml and comment localtime volume?)
  • Windows host support (need to use docker volume instead local directory path?)

BUGS

  • Unpredictable network interface order when running in Multi-Tenant mode. As workaround, used network interface name must be named in lexical order. refs:
  • By default FreePBX use Signature Checking for modules packages, but this make very high delays when reloading FreePBX, so by default is been disabled. refs:
  • No commercial FreePBX modules can be installed
    • sysadmin rpm module is missing, looking for a solution
  • Missing good EndPoint Manager for automatic phone provisioning
    • Looking fo a valid solution

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izPBX is a Turnkey Cloud Native Telephony System powered by Asterisk Engine and FreePBX Management GUI

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