ISDN Features

Primary Rate Interface (PRI) Installation

ISDN Features

Primary Rate Interface (PRI) Installation

Description

Your system is compatible with ISDN Primary Rate Interface (PRI) services. The PRI services currently supported include:

Basic PRI Call Control (BCC).

Display of incoming caller's number (with software 1.02 or higher and when allowed by the telco).

Routing in the system based on the number the caller dialed (Called Number Information element).

ISDN maintenance functions (such as In Service/Out of Service Messaging).

Speech and 3.1KHz audio.

Conditions

Each T1/PRI Interface PCB is switch selectable between T1 and PRI operation. For more on T1 trunk- ing, refer to the T1 Trunking feature in your system's Software Manual (P/N 0893200).

Installing the Aspire T1/PRI Interface PCB (P/N 0891009)

System Requirements:

T1/PRI Interface PCB, P/N 0891009

Aspire system software: Any Version

NTCPU (P/N 0891002) with PAL Upgrade (P/N 0891039) OR Enhanced NTCPU (P/N 0891038)

For DTMF receivers with such options as ANI/DNIS

CSU/DSU Unit and interconnecting cables (see below)

The T1/PRI PCB has a single 24 channel circuit which you can configure for either T1 trunking or PRI. When set for PRI, each T1/PRI PCB provides 24 PRI (23 B & 1 D) channels with 64K Clear Channel response Each PCB uses a single slot in the system cabinet.

Connecting the T1/PRI Interface PCB requires the following equipment.

Satellite 931 CSU (P/N 85945)

External 8-pin RJ-45 crossover cable required

T1/PRI Interface PCB (P/N 92060A)

When installed, the T1/PRI Interface PCB uses the first block of 24 consecutive trunks. For example, if you have an 8COIU PCB installed for trunks 1-8, the T1/PRI Interface PCB will automatically use trunks 9-32. If you have 8COIU PCBs installed for trunks 1-8 and 17-24, the T1/PRI PCB will use trunks 25-48. The T1/PRI Interface cannot use trunks 9-16 (even if available) since they are not part of a consecutive block of 24 trunks.

Aspire ISDN PRI Manual

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NEC ISDN-PRI manual Isdn Features, Primary Rate Interface PRI Installation, Description, Conditions

ISDN-PRI specifications

NEC ISDN-PRI (Integrated Services Digital Network - Primary Rate Interface) is a telecommunication standard that provides high-capacity voice and data transmission over digital networks. Offering exceptional reliability, ISDN-PRI has become a crucial component for businesses seeking robust communication solutions. One of the standout features of NEC ISDN-PRI is its ability to support 23 voice channels, each capable of delivering clear and high-quality audio simultaneously. In addition to voice channels, ISDN-PRI can also handle one data channel, facilitating data transmission at speeds of up to 2.048 Mbps.

A significant characteristic of ISDN-PRI is its digital nature, allowing for efficient use of bandwidth and minimizing issues common in analog systems, such as signal degradation and noise. This technology leverages time-division multiplexing (TDM), which enables multiple voice signals to occupy a single transmission medium without interference. Each channel is allocated a specific time slot, ensuring a seamless communication experience.

NEC ISDN-PRI is also known for its features such as call setup and teardown capabilities. Utilizing the D channel, ISDN-PRI can establish and terminate calls quickly, enhancing overall call management and enabling businesses to handle high volumes of concurrent calls efficiently. Moreover, businesses can benefit from supplementary services, including caller ID, call forwarding, and call waiting, which enhance operational efficiency and customer service.

Security is another critical aspect of NEC ISDN-PRI. The technology includes features like encryption and secure access protocols, ensuring that sensitive data remains protected during transmission. These security measures are vital for businesses dealing with confidential information and seeking to comply with industry regulations.

Furthermore, ISDN-PRI is highly compatible with various telecommunication infrastructures, making it a versatile choice for organizations looking to upgrade or integrate their existing systems. The ability to connect to PBX systems and support multiple protocols adds to its appeal, providing businesses with scalability and flexibility as their communication needs evolve.

In summary, NEC ISDN-PRI stands out as a reliable and efficient communication solution. With its support for multiple voice channels, high data transmission rates, robust security features, and compatibility with various systems, ISDN-PRI is well-suited for modern business environments seeking to enhance their communication capabilities and improve overall operational efficiency.