Review on Grandstream GXP1615 Business HD IP Phone - Small to Medium Sized VoIP Phone and Device by Donia Carey

This works well and is a very handy VOIP phone (I use it with Voipo as ISP). Rendering can be an issue. While Grandstream supports automatic deployment via configuration files from a TFTP or HTTP server, the documentation for formatting these files and the list for mapping different options to the different codes assigned to them is in different places, not in one organized place Art a place. This means a lot of trial and error to get them set up and running as 'managed' phones rather than user configurable phones. But it works and you can't beat the price.