some sketches for a SIP doorbell prototype

call.sh

#!/usr/bin/expect -f

# Set the SIP account details
set sip_account "cuteUsername"
set sip_password "superSecretPassword"
set sip_domain "fritz.box"
set destination "sip:**9@fritz.box"
# **9 is a call group for every phone in my fritzbox
# not sure if this is a common thing

# Start linphonec
spawn linphonec

# Wait for linphonec prompt
expect "linphonec>"

# Register the SIP client
send "register sip:$sip_account@$sip_domain $sip_password\n"
expect "linphonec>"

# Make the call
send "call $destination\n"
expect "linphonec>"

# Wait for 10 seconds to keep the call active
sleep 10

# Hang up the call
send "terminate\n"
expect "linphonec>"

# Exit linphonec
send "quit\n"
expect eof

trigger.py

#!/usr/bin/env python3

from gpiozero import Button
import subprocess
import signal
import sys

# Set up GPIO 21 as an input
button = Button(21)

# Define the function to run the bash script
def run_script():
    subprocess.run(["/path/to/call.sh"])

# Attach the function to the button press event
button.when_pressed = run_script

# Keep the script running
def signal_handler(sig, frame):
    sys.exit(0)

signal.signal(signal.SIGINT, signal_handler)
signal.pause()