Roaming PBX with Raspberry Pi, Asterisk and chan_dongle

As an frequent tralveller, I well understand the needs of another travelers and citizens of the world in telecommunications ;) While ago I’ve decided to spent my free time building Roaming PBX solution.

What I am planning first:

  • Raspberry Pi image (with possible OpenWRT solution too);
  • Asterisk PBX;
  • asterisk chan_dongle — an driver for Huawei USB modems, that handle two-way GSM calls;
  • VPN to get it working in locations where VoIP is blocked;
  • FreePBX GUI to manage dialplans;
  • Asterisk2billing, preconfigured — to control expenses;
  • Keep-alive scripts, monitoring

Anything extra?

Update (19 March, 2013)

I have successfully created an image file based on standard raspbian. Currently busy working on cross-compiler.

Update #2 (6 May, 2013)

Download link, containing latest image: Standard flashing instructions: gunzip .gz file, insert SD card, flash with Linux DD command… This site for example, describing flashing procedure well.