RasPBX: http://www.raspberry-asterisk.org/

RasPBX Forums: https://sourceforge.net/p/raspbx/discussion/

RasPBX Documentation: http://www.raspberry-asterisk.org/documentation/

Another HowTo: https://www.dslreports.com/forum/r30661088-FreePBX-for-the-Raspberry-Pi

Run this command at the console to install the latest additions and improvements:

raspbx-upgrade

1. Download the latest image
2. Write the image to a 4GB+ MicroSD memory card
   1. Use Win32 Disk Imager
3. Expand the root partition on larger memory cards
   1. raspi-config
   2. Then option expand_rootfs
4. Determine IP address
   1. ifconfig
   • http://raspbx
   • ssh -l root raspbx
   • DHCP lease
5. Regenerate SSH host host keys
   1. regen-hostkeys
6. Configure the timezone
   1. configure-timezone
7. Configure keyboard
   1. dpkg-reconfigure keyboard-configuration
8. Configure e-mail settings
   1. dpkg-reconfigure exim4-config
      1. mail sent by smarthost
      2. IP address or the host name
   2. nano /etc/exim4/passwd.client
      1. SMTP_HOSTNAME:USERNAME:PASSWORD
   3. Set the sender address, if necessary
      1. nano /etc/email-addresses

         1. root: your_email@someisp.com
            asterisk: your_email@someisp.com

   4. update-exim4.conf
   5. send_test_email your_email@someisp.com