Raspberry Pi PBX Phone Server

rasppi-voiceLast year, I wrote about cancelling my home phone line with our local provider and replacing this home service using the wonderful “PBX in a Flash” software on a server located in my house.  The original article details the process and hardware utilized.  Of coarse, the overall goal of this project is to cut home phone service costs, provided better phone service.  My wife Heather LOVES receiving voice mail messages on her computer via email.

In practice, there are a few draw backs to the the setup.  The good news is that there are solutions to every problem.

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Phone Server Soup: PBX in a Flash & Google Voice

Google VocieIn my continuing efforts to keep up to date with the latest of technology and lower my own monthly expenses, I have built a home phone server for my home office.  As cell phones continue to gain in popularity, and coverage areas expand, this may seem like an old solution to a modern problem.  I know several households that no longer have a home land line, and they just use their cell phones.  This is a great idea, but sadly for some of us, it not a solution for a variety of reasons.

  1. Cost: I want to have a phone line, voice-mail, etc… and NOT pay way too much money for a large corporation.  I am planning on running the phone server and utilizing Google’s free Google Voice service which provides incoming and outgoing phone service.  In time they may change for this service, but other companies offer phone numbers and service for a starting cost of about $4 / month.  This is much less expensive that my current monthly phone bill.
  2. Lack of Coverage:  Cell phone reception at my house is poor depending upon your service provider.
  3. Old technology: I have several devices in my home, such as alarms, DVR’s etc… that do not use the Internet to connect to the service provider.  This is a sad state of technology, which is the reality of the times.
  4. Call Routing: A phone server will allow me to send calls from multiple sources, and route them to different locations depending upon their source.  Also, as an example should someone call, and wish to speak with my wife Heather, I can easily transfer the call to her cell.
  5. Call screening: During political seasons, and living in a swing state for the presidential elections, I tend to get a lot of political calls.  During the last election cycle, I would receive up to 20 phone calls per day.  This is the sad state of our political system and really annoying for me.  When the calls start coming in next time, I may force the caller to press the ‘1’ key on their phone to complete the call.  This should stop all ‘Robo Calls’.
  6. Continuing Education: A big part of my goal here is to teach myself how SIP phone servers work.

Many people, Blogs, consultants, etc… have written a lot about setting up an Asterisk SIP phone server with Google Voice.  I have not invented anything here, and rely heavily on their hard work and dedication to their craft.  So that being said, here is what I did to get Asterisk running with Google Voice.

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