Digital EPABX, IP EPABX, Video Conference System, Audio Conference System, Audio Visual System Integration, Data Networking Systems. We bagged Rs 64 Lacs order from Super City for Fiber-to-the-Home (FTTH)


ISDN Primary Rate Interface (PRI)

Integrated Services for Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network.  There are several kinds of access interfaces to ISDN defined as Basic Rate Interface (BRI),Primary Rate Interface (PRI), Narrowband ISDN (N-ISDN), and Broadband ISDN (B-ISDN).

ISDN PRI gives you fast, flexible access to services such as direct inward and outward dialing, WATS, Toll-Free Service, and circuit-switched data. The Call-by-Call Service Selection and Individual Calling Line Identification capabilities offer a cost-effective, feature-rich method of local access for applications such as PBX trunking, Internet Service Provider access, host computer access, LAN-to-LAN connections, and videoconferencing.

PRI  is carried over an E1 (2048 kbit/s) in most parts of the world. An E1 is 30 'B' channels of 64 kbit/s, one 'D' channel of 64 kbit/s and a timing and alarm channel of 64 kbit/s.

PRI-ISDN is popular throughout the world, especially for connecting PBXs to PSTN.


·         Save the cost of individual dedicated circuits.

·         Enjoy clear, digital transmission for voice and data communications.

·         Gain the flexibility of call-by-call service selection that increases trunking efficiency and the potential for savings.

·         Increase call handling efficiency with calling line identification – a feature available even to PBX users.

·         Protect the reliability of your communications with options for backup configuration.

·         Benefit from planned enhancements like additional telephone number capability and contract pricing.

·         Save travel time with full motion virtual meetings using videoconferencing.

We are associated with Service Provider i.e  Tata, Bharti Airtel, Reliance and BSNL to provide ISDN PRI along with Digital and ISDN compatible EPABX.

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