Success!
root@debian:~# systemctl status -l freepbx.service
● freepbx.service - FreePBX VoIP Server
Loaded: loaded (/etc/systemd/system/freepbx.service; enabled)
Active: active (exited) since Wed 2015-09-02 11:07:19 NZST; 47s ago
Process: 1031 ExecStart=/usr/sbin/fwconsole start (code=exited, status=0/SUCCESS)
Main PID: 1031 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/freepbx.service
├─1461 /bin/sh /usr/sbin/safe_asterisk -U asterisk -G asterisk
└─1465 /usr/sbin/asterisk -f -U asterisk -G asterisk -vvvg -c
Sep 02 11:07:16 debian fwconsole[1031]: Checking Asterisk Status...
Sep 02 11:07:16 debian fwconsole[1031]: Run Pre-Asterisk Hooks
Sep 02 11:07:16 debian fwconsole[1031]: Starting Asterisk...
Sep 02 11:07:16 debian fwconsole[1031]: 0/100 [>---------------------------] 0%
Sep 02 11:07:17 debian fwconsole[1031]: 33/100 [=========>------------------] 33%
Sep 02 11:07:18 debian fwconsole[1031]: 66/100 [==================>---------] 66%
Sep 02 11:07:19 debian fwconsole[1031]: 99/100 [===========================>] 99%
Sep 02 11:07:19 debian fwconsole[1031]: 100/100 [============================] 100%
Sep 02 11:07:19 debian fwconsole[1031]: Asterisk Started on 1465
Sep 02 11:07:19 debian fwconsole[1031]: Running Post-Asterisk Scripts
root@debian:~#