ISDN Features

Primary Rate Interface (PRI), Placing Calls

Programming (Cont’d)

➻15-06-01 : Trunk Access Map for Extensions

Assign Trunk Access Maps (200) to extensions. You must set up the Trunk Access Maps in Program 14-07-01. This allows you to control extension access to the PRI trunks.

Default Setting: All extensions use Access Map 1.

➻15-07-01 : Programmable Function Keys

Assign a function key for Caller ID Block for ISDN (63) if required.

To simplify placing PRI calls, assign function keys as line keys (*01 + line # [001-200]), loop keys (code 1078) and Trunk Group keys (code 1012 + Trunk Group).

Default Setting: Function keys 1-12 are line keys for trunks 1-12.

➻20-02-06 : System Options for Multi-Line Telephones - Preselection Time

Set the preselection interval (0-64800 seconds). When a keyset user preselects a line key, the system remembers the preselection for this interval.

Default Setting: Preselection time is 5 seconds.

➻20-06-01 : Class of Service for Extensions

Assign a Class of Service (1-15) to each extension. Use this option in conjunction with Program 20-08- 02.

Default Setting: Extension 301 has COS 15. All other extension have COS 1.

➻20-08-02 : Class of Service Options (Outgoing Call Service) - Trunk Calls In an extension’s Class of Service, enable (1) or disable (0) trunk calling.

Default Setting: Trunk calling enabled (1).

➻20-08-13 : Class of Service Options (Outgoing Call Service) - ISDN CLIP

Determine if the ISDN calling line identity presentation and screening indicators are to be allowed (0=disabled, 1=enabled).

Default Setting: ISDN Calling Party Number disabled (0).

➻20-09-03 : Class of Service Options (Incoming Call Service) - Sub-Address Identification Enable (1) or disable (0) the telco’s ability to display the sub-address identification.

Default Setting: ISDN Sub-Address Identification disabled (0).

➻20-13-31 : Class of Service Options - ISDN Connected Line Identification

Enable (1) or disable (0) the telco’s ability to display trunk identification for outgoing calls the exten- sion places.

Default Setting: ISDN Connected Line Identification disabled (0).

➻21-01-03 : System Options for Outgoing Calls - Trunk Interdigit Time (External)

Set the amount of time the system must wait before placing the call in a talk state (call isn't timed until then, Voice Over and Barge-In are not allowed until after timer expires) (0-64800 seconds).

Default Setting: Trunk Interdigit = 5 seconds.

➻21-08-04 : Repeat Dial Setup - Time for Send Busy Tone for ISDN Trunk

Set the length of the time the system should send a busy tone after detecting the called party is busy (by receiving either a 'RELease complete' or 'DISConnect' message from the CO). After this timer's expires, the keyset will go to an idle status (0-64800 seconds). If '0' is entered, a caller will not hear a busy tone when the ISDN trunk detects a busy state. It will immediately go the an idle status.

Default Setting: 0 (caller does not hear busy tone)

Aspire ISDN PRI Manual

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NEC ISDN-PRI manual System Options for Multi-Line Telephones Preselection Time, Class of Service for Extensions
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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.
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