Dialogic Boards

Dialogic Diva (V-xPRI) Multi-Span E1/T1/PRI Boards

Dialogic Diva Multi-Span CardsThe Diva V-xPRI offer voice, speech, conferencing, VoIP, modem and fax features and can serve as a base for many communication applications. 

The boards support many standard applications, and are also suitable for new application development. 

The Diva V-xPRI are available in Half Size and Full Size PCI Express form factor. The Half Size version has 12 DSPs and comes in versions for 1, 2, and 4 trunks. The Full Size version has 24 DSPs and comes in versions for 4 and 8 trunks. 

The Diva V-xPRI can be seamlessly combined with other Diva® Media Boards, such as those supporting Analog, ISDN BRI, and VoIP.

PCI and PCIe versions can be used in the same server providing both can be physically supported by the server.

The Diva V-xPRI support the same set of application interfaces as other Diva Media Boards: the three Dialogic® Diva® APIs as well as CAPI, COM port, WAN Miniport and TTY. Although Diva Media Boards share the same interfaces, the Diva V-xPRI are the only ones that have the flexibility to allow a customer to upgrade the initial “V-series” voice feature set with four additional software licenses at any time:

Because of consistent interface support, applications written for another Diva Media Board with comparable functionality will normally work without modification with the Diva V-xPRI Media Boards.

Diva Media Board Features

Power Icon
on-board power

Onboard CPU with large RAM and powerful FPGA chip for fast data streaming between the host CPU, the DSPs, the phone line, and the other active components onboard

On Premise Icon
retain host server performance

Can remove performance bottlenecks by offloading key real-time tasks that would ordinarily place an excessive burden on the host server, allowing quality of service to be more consistent.

Telephony Cards

Sophisticated hardware design.

Diagnostic Tools Icon

Operates with low power consumption.

Compatible Icon
Highly compatible

Allows application compatibility with major PBXs and can make a system based on Diva® technology ready for worldwide use.

Flexible Media Support Icon

Implements most supplementary services, many signaling protocols, as well as all multinational ISDN protocols.

Supported Phone Systems Icon

Voice packetization into Real-time Transport Protocol (RTP), adaptive jitter buffer, voice compression (AMR-NB, G.726, RTaudio, GSM), and Comfort Noise Generation (CNG) available.

Any-to-Any Signaling and Media Support Icon
reduce footprint

Up to eight or more Diva Media Boards of the same or different types can operate concurrently in a single server, depending on the application and performance of the server hardware.

Efficient Icon
real-time processing

Provides real-time processing of complex operations (such as V.90 data modem, V.34 fax receiver and transmitter, voice compression, or 256 ms echo cancellation) without reducing overall system performance, which lowers implementation costs.

Support Gear Icon
on-board dsp

Depending on the version of the Diva V-xPRI Media Board, 3, 5, 6 or 12 powerful DSPs are available per trunk (E1/T1/J1/ISDN PRI).

Scalable Icon

Upgrades available via additional licenses.

Plug and Play

Conforms to plug-and-play standards.

Interoperability Icon

Permits legacy voice, speech, and conferencing applications to be used with VoIP clients and IP phones.

Field Upgradable Icon
future proof

Supports the same programming interfaces as other Diva® Media Boards, including Diva® APIs, CAPI, TTY, COM port, and others.

Warranty Icon
feature licensing

Can be upgraded to support modem, fax, and VoIP coders.

Simplified Deployment Icon

Permits easy installation and operation.


(1) The former license bundles have been replaced by the more flexible and additive licenses. Customers can now order the exact required quantity of channels.

(2) Please note that the Diva V-4PRI PCIe HS (306-396) and the Diva V-8PRI PCIe FS (306-404) media boards may have limitations when running V.34 and higher modem or fax protocols on all available channels. Please contact your Sangoma Sales Office for details.

Where to Buy

Orange Phone Icon

Let us Help You
Find a Solution

Person Tie Icon

Buy from a
Local Partner

Scroll to Top