Open Source VoIP Guide Part 3: Ready for Business?

“While the strongest uptake of Asterisk is in the education
sector, analyst firm Gartner says businesses should be open to
using Asterisk.

“The recent Gartner ‘Magic Quadrant’ report on significant
Corporate Telephony providers in Asia/Pacific includes Asterisk’s
developer Digium, but rates it as a ‘niche player…'”