ISDN Features

Primary Rate Interface (PRI), Answering Calls

Programming (Cont’d)

➻15-02-02 : Multi-Line Telephone Basic Data Setup - Trunk Ring Tone Use this option to change the ringing pitch of incoming trunk calls to keysets.

Default Setting: Midrange (2)

➻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. See How the Telco Handles PRI Trunks on page 12 for more.

Default Setting: All extensions use Access Map 1.

➻15-07-01 : Programmable Function Keys

To have incoming PRI calls ring specific keys, assign trunks to line keys (*01 + line # [001-200]). You can also have loop keys (code *05) and Trunk Group keys (code *02 + Trunk Group).

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

➻20-06-01 : Class of Service for Extensions Assign a Class of Service (1-15) to an extension.

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

➻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).

➻20-13-23 : Class of Service Options (Supplementary Service) - Display the Reason for Transfer Enable (1) or disable (0) an extension’s ability to display the reason (Call Forward, Busy, No Answer or DND) a VRS, DID, DISA, or ISDN call is being transferred to their extension.

Default Setting: No reason is displayed (0).

➻20-15-01 : Ring Cycle Setup - Normal Incoming Call on Trunk

Use this option to change the way calls ring the telephones. Keep in mind that changing this option affects all types of trunk calls - not just PRI calls.

Default Setting: Outside calls ring keysets with a short ring followed by a pause (3).

➻20-19-04 : System options for Caller ID - Wait Facility IE Timer

This option sets how long the system will wait for the Caller ID name (0-64800 seconds). If set to “0” no name is provided.

Default Setting: 10 seconds.

➻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.

➻22-01-02 : System Options for Incoming Calls - Incoming Call Ring No Answer Alarm

Enable (1) or disable (0) the Incoming Call RNA Alarm. If enabled, the ring cadence will change for a call that rings longer than the interval set in Program 22-01-03.

Default Setting: Incoming Ring No Answer Alarm disabled (0).

➻22-01-03 : System Options for Incoming Calls - Ring No Answer Alarm Time

Set the Ring No Answer Alarm interval (0-64800 seconds). If a trunk rings a keyset longer than this interval, the system changes the ring cadence, if enabled in 22-01-02.

Default Setting: Ring No Answer Alarm Time = 60 seconds.

➻22-01-04 : System Options for Incoming Calls - DIL No Answer Recall Time

If an incoming trunk call rings longer than this interval, it reroutes to the Ring Group set in Program 22-08. Default Setting: DIL No Answer Time disabled (0). Calls do not reroute.

Aspire ISDN PRI Manual

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NEC ISDN-PRI Trunk Access Map for Extensions, Programmable Function Keys, Ring Cycle Setup Normal Incoming Call on Trunk
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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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