I am making a small DIY project to operate my wired landline phone (twisted copper cable) using my mobile phone. Use cases:

  • Dial number on landline via mobile device.
  • Receive incoming landline calls via mobile.

I plan to use RaspberryPi. What device can I use to intercept calls on my wired phone and do two way manipulation? (I assume it will be an analog to digital and vice versa device, similar to a modem.)

  • \$\begingroup\$ As Jasen has answered, an Asterisk setup is what you want. You're basically setting up a pbx. \$\endgroup\$ – Passerby Feb 8 '16 at 13:14

you want an FXO with USB or ethernet connectivity, probably you want asterisk support too.

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