fetapi - FeTAp with a Raspberry Pi

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Installation

Some of the following instructions must be executed with root privileges.

Installing fetapd

1. Clone this repository (together with pylinphone as sub-module)

   cd /opt
   
   git clone https://git.blinkenbunt.org/LUG-Saar/fetapi.git
   git submodule update
   

2. Configure and enable fetapd as systemd service

   ln -sr fetapd.service /etc/systemd/system/
   systemctl daemon-reload
   systemctl enable fetapd
   

Installing linphone-cli on Raspbian

1. Install debootstrap

   apt install debootstrap
   

2. Create a Debian/sid chroot environment

   cd /var/tmp
   mkdir debian-sid
   
   debootstrap --arch=armel --foreign --variant=minbase sid ./debian-sid http://ftp.de.debian.org/debian
   
   chroot debian-sid/ /debootstrap/debootstrap --second-stage
   

   Note: Without --variant=minbase, sound won't work for some strange, unknown reason.

3. Install linphone-cli inside the chroot environment

   chroot debian-sid/ apt -y install linphone-cli
   

4. Create user inside the chroot environment

   chroot /var/tmp/debian-sid adduser --disabled-password pi
   

5. Bind-mount /dev to make ALSA accessible within the chroot

   cat <<EOF >>/etc/fstab
   /dev /var/tmp/debian-sid/dev none bind 0 0
   EOF
   
   mount -a
   

6. Copy Linphone configuration file

   cp linphone.conf /var/tmp/debian-sid/home/pi/
   

7. Configure and enable linphone-daemon as systemd service

   ln -sr linphone-daemon.service /etc/systemd/system
   systemctl daemon-reload
   systemctl enable linphone-daemon
   

Configuring fetapd

⚠️ TODO

Identifying soundcard

# chroot /var/tmp/debian-sid /usr/bin/linphonec
...
linphonec> soundcard list
0: ALSA: default
1: ALSA: bcm2835 Headphones
2: ALSA: C-Media USB Headphone Set

Starting fetapd

systemctl start fetapd

(or simply reboot your FeTAp)