The Grandstream product is very inexpensive when I checked it out. They say "The UCM offers a highly versatile, state-of-the-art Unified Communication UC solution for Grandstream UCM6104 IP PBX voice, video, data, fax and video surveillance application needs. Then if Grandstream feels that the FreePBX user interface is a bit too complex and want to hide certain features, they can do what Elastix did and put their own front-end on top of FreePBX. Years of FreePBX development with powerful module[…]
