PRI Circuits Overview

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Primary Rate Interface or PRI circuits are the standard for business telecommunication configuration in the United States, Europe and Asia. PRI circuits are based on a T1 circuit in the US and an E1 circuit in Europe and other parts of the world. An ISDN PRI T1 circuit provides bandwidth speeds of up to 1.544 Mbps or 64 Kbps per channel in the US. ISDN T1 PRI circuits provide 23 B-channels and 1 D-channel for data and signaling. PRI circuits based on E1 circuits provide 30 B-channels and 2 D-channels with bandwidth speeds of up to 2.048 Mbps. More than one ISDN T1 PRI circuit can be combined through pairing to increase the number of channels to 46 B-channels and 2 D-channels. Additional bandwidth and PRI circuits can be added in increments as mentioned above. The diagram below on PRI circuits visually presents how a PRI works.

PRI Circuits Diagram

There are many features and benefits associated with PRI circuits.  PRI circuits provide an all digital, high speed, high capacity network for the transmission of voice, data and video applications.  PRI circuits are widely used by mid-sized and large enterprises with high call volumes.  Call centers, hospitals, financial firms, schools, manufactures, and auto dealerships are just a few examples of industries utilizing PRI circuits.  PRI circuits provide increased flexibility with the option to assign channels for specific purposes such as only voice, data, and video or even toll free applications.  There are a lot of options when it comes to customizing PRI circuits to meet your requirements.  You can assign channels for voice during the day and data during the night depending on traffic patterns and other factors.  PRI circuits provide fast call transmissions, digital clarity and value added features such as caller ID.  Most PRI circuits also come with Service Level Agreements (SLAs) that ensure service uptime and call quality.

Find out more about PRI circuits and related telecommunication and networking solutions by contact GlobalQuotes™. We specialize in PRI circuits and have a dedicated team of PRI product specialists to assist with all of your business telecommunication initiatives. Simply fill out the form or call us toll free at (877) 708-8900 for more information on PRI circuits.

PRI Circuits