Quote Originally Posted by VOIPoTim View Post
In terms of this issue, we are working with Grandstream. My understanding is that their MWI support is not complete in that it does not work well with ALL phones.
I thought this device has been around a while. Seems GS should have it perfected by now. It must be newer than I realize?

I think I am confused with the HandyTone ATA-286
http://www.dslreports.com/forum/remark,8038530
That thread is in 2003.