This guide will walk through how to install network caller ID (NCID) on a headless raspberry pi. The primary goal of this is to create a blacklist to prevent unwanted spam telephone calls.

Hardware needed:

1. Raspberry Pi, a model b was used but any should work
2. SD Card, any larger than 4gb should work
3. 5V power supply. The modem appears to take a large amount of current. The first 1 amp power supply was unstable so it was replaced with a 2 amp version
4. Modem, a Zoom 56K USB Modem Model 3095 was used. This was sourced from Ebay.
5. Phone cord
6. A splitter. http://amzn.to/2fyT9hP to put the modem in parallel to the phone

How to install NCID:

1. Grab an image of the Rasbian operating system from https://www.raspberrypi.org/downloads/ and install it to an SD card using this guide https://www.raspberrypi.org/documentation/installation/installing-images/
2. SSH into the PI using putty http://www.putty.org/ User Name pi Password raspberry
3. Grab a copy of the NCID source code from here https://sourceforge.net/projects/ncid/files/latest/download using wget. Sourceforge can be a little strange so you may have to poke around to find the direct link
4. Un-tar the archive using tar -zxvf ncid-X.XX.X-src.tar.gz (replace the X.XX.X with version number)
5. Run sudo-apt get update then grab a copy of sudo apt-get install libpcap0.8*
6. Navigate to the folder with the build scripts and run sudo make ubuntu-install
7. Open the config file with sudo nano /etc/ncid/ncidd.conf
8. Make the following changes to the configuration file:
   set ignore1 = 1
set hangup = 1
set ttyport = /dev/ttyACM0
set lockfile = /var/lock/LCK..ttyACM0# Make sure your modem is located here
9. open nano /etc/ncid/ncidd.alias
10. Comment out this line with a “#” #alias LINE - = POTS
11. Make the  NCID daemon automatically start up sudo update-rc.d ncidd defaults
12. The blacklist is located here and should be edited /etc/ncid/ncidd.blacklist
13. Finally run sudo invoke-rc.d ncidd restart to get the service running. This also appears to need to be run after editing the blacklist.

Notes:

• If the services is not working these links were useful during troubleshooting:
  • https://sourceforge.net/p/ncid/discussion/275237/thread/c2d09d0e/
  • https://sourceforge.net/p/ncid/wiki/Steps%20to%20install%20and%20configure%20minicom%20on%20a%20Raspberry%20Pi/
• This may or may not work outside the United States
• Commercial products exist that have similar functionality for around the same price http://amzn.to/2gFDrgP
• The caller ID will hang up after the first ring so not totally silent.
• Websites that spoof telephone numbers and caller IDs are available for testing.
• Since this is running headless the GPU memory can be decreased.