The OpenVox D115E is a half length ISDN
(Integrated Services Digital Network) PRI (Primary Rate Interface) PCI
(Peripheral Component Interconnect) card. The D115E provides a single
span PRI/E1/T1/J1 port, which makes it an ideal cost effective option
for small to medium sized enterprise applications. OpenVox are a
Fonality® Authorized / Certified Ecosystem (FACE) partner and the
OpenVox D115E is officially certified for use with Trixbox®.
The OpenVox D115E supports industry standard telephony and data
protocols, including both Robbed-bit Signaling (RBS) and Primary Rate
ISDN (PRI) protocol families for voice and PPP, Cisco HDLC, and Frame
Relay data modes. The board drives both line-side and trunk-side
interfaces, including call features. The OpenVox D115E is 100% compatible with Digium® Asterisk and uses the Zaptel/Dahdi opvxd115 device driver.
Standard PC (Personal Computer) hardware can be used along with D115E
cards to provide a low cost migration path from legacy ISDN PBXs
towards an Open Source IP PBX based solution. The D115E is compatible
with leading open source IP PBX software such as Asterisk®, Trixbox®,
and Elastix® (OpenVox are an Elastix® Strategic partner), which support
all the sophisticated features of expensive high-end PBX/Voicemail
Although developed primarily for Open Source IP PBX Asterisk® based
applications, the D115E can be used for any Linux applications/systems
that require ISDN connectivity, e.g. Linux ISDN firewalls, VoIP
gateways and routers.