Vertical
Vertical Communications is a telecommunications company that was founded in 2004. Vertical manufactures a variety of models including the Edge 9800 series of IP phones (9840, 9830, and 9820), Edge 9000 series of digital and IP phones, Edge 700 digital series, and some wireless DECT handsets.
Vertical is a unique company because they not only manufacture, but also distribute and install telecom solutions such as phones, SIP trunks, etc.